Thomas Andrew Lehrer (; April 9, 1928 – July 26, 2025) was an American musician, singer-songwriter, satirist and mathematician, who later taught mathematics and musical theater. He recorded pithy, hum
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9155eaf5ee57601a77ad8bca6b084ecf8b581d064fb1efae1c9bcaae54adf997. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/446bffae-a438-46d0-849d-d88c534f7f98.json and https://artists.proofprofile.net/proofs/artist/446bffae-a438-46d0-849d-d88c534f7f98.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab475b05eedd5d09ca05b9314687a0aadd88d71d2fc512cc96b2e87e2aed72b4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGN38322801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdcad0e94285a7362dbe8b2d3a4bd7c034f0aeff46efce6e5fb8fc6df821a8d0. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGN38322802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9087482d8ef9ac3e788611b7523c92ac89a84acf6ea3df7fc5e6b4540c7fae93. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGN38322803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69504417cebaeb411dc499d17161ae5d09182a811e8d208d0d4779129f883a09. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGN38322804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec95dd1b490d070bb5f094345a1f7a4d4a6783b4491a367976b102627e22e65e. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGN38322805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa89e11ce957e4f99fbe226f0f81d27504af370445e43ab26f821663e5992c62. Chain 2 (Bitcoin): anchored in block 960330 (2026-07-31T00:58:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGN38322806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a953728a647514f714156d57071265bddd82f27e0707b479f43cf8c60082844. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGN38322807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78beea07eaa2e42df69f12318a7e7cc341ae11df0c8b1f3bc3f46a8b181062e3. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGN38322808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9df5ebb0162263a6a41f16a538311888c96f38d39a3e907204b95ebe3a77a61. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGN38322809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74184dcd256490c8b584ba1e412929b77dbc8152919ae57ca16a8163d68a3792. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGN38322811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2685b85f4069edd73c04c0da7c2c33f9e1c7f1e113059e097c96e214e25a5d59. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGN38322813.
Tom Lehrer - Satirical Witty Musical Irreverent, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb8b25b2a9ba5183e1d540d665378f57128304d7b87aab87ce9fba6bf7a6f8c. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0P2355156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0ba92e633e83dd9671449197efc4a29686cd27612b134ec0f9f750314909024. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0P2355157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bceedf6a57b43b9e46fb472554ad45a5239421a69ddb1e0e4517566f3222e41. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0P2355158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8544ea12b762b78228da8899db6300b8d7523ae53f0a3776a74bd7c574eafa85. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0P2355159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaea686390144bcc2e12e356f1a546f3d33f3d106a524e6a41f95f2a48e5b1a90. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0P2355160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0f3817181a06aa33833b2bb6591dbe2cffaa959e3cb5fd9f4e4f2f6c0332380. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0P2355161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e4517bc2e0f5d6ee061e38628ceee5d16cf1c934b6c90b597e6802427dc0d00. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0P2355162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72a5905bd27efbcc69327402d6795e4a96b3af5c396fe80eac05038379748a42. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0P2355164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f95271ae86340ce78cfe816793b9758b72b9699c20bdf931f13f3baf5f5aad9. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0P2355165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad9600c674a33c5719071c2977a904b823f5db59e7d661933c09eca85abd70ec. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0P2355167.
Tom Lehrer - Satirical, Witty, Musical, Irreverent, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d608522f6f101418a282fd005d51c01f5d1f270fd0054003a0b82dd4bbe1710. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9K2341060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5301b9a0d0f8b5ed6acbdf2ab43491c92dafc5311258e502d7c4471a6ccb2908. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9K2341061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bdda46a35f488faddae8a60a6955b764060fddbbd3572368e3ffa0c00f73cd2. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9K2341062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8d890ebb07454efb3e306f391ddcdcb2737a837f7375aa244f022b43f491a38. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9K2341063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b010c2d6e784e7c1ee4cb29f4a2c58836b5ddc73389000d373bc456c87e290c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9K2341064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdddde8ceadc47323d39e810c00fe42eaaf9f70807a2dd5332bf4cff3f0a26cd5. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9K2341065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d9313a3553176d8d7863daba43a776c5eaf83dca0c3fa08f42141a91c9f50be. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9K2341066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e7fa34c0adafc738c0f75052f6ec1af3bf0282a2115602961f498b654c82dbf. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9K2341067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a6bfa68ff295ea6d23c16289e77e54449ddfc72c2b3781da22d6997287033eb. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9K2341068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75dd674ae052a4a81de4738eff4ab37338f08d81a9bc345818ce7ad77fa36725. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9K2341069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37debe0f2fff7fa82b0500f479f708b0ca9ce000db2cf27ca947d58bcf4b7631. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9K2341070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bd3689a2c8235a6af52da2feeb4903c12d232ecad022ccc3b2035c1730d6d8b. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9K2341071.
Essential Classics, Vol. 114: Tom Lehrer
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28bb1bcc6551861f51a6ba6a043041065c27e9ae31f9a58f40995d5694fb76a6. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES31E2303395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c979991da1bb9087fddf2222652bd6c33fca95acb460d5d3af61f895fdf5a26. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES31E2303396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd24f60b72ca1ecef9baaaf3e8eceeea46c04d91f2f86f45b6f9b8e1a86550f8a. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES31E2303400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cf2a070f18849035c47a47486464efea3df2434ea18c3707f048679a0f657e7. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES31E2303403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb639a5d75539717acd51c34703268f494576208b98f582a1ec705e698923f9ab. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES31E2303406.
Tom Lehrer - Poisoning Pigeons in the Park
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbca224125a8a981864d4491fc51942556ab77e97470cf010c1d322f1f0545752. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA052379132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfae3d52237c91c545b9e810d3e6380669ddb52ac51eb772778f4a980fecdc466. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA052379138.
Tom Lehrer - We Will All Go Together When We Go (Original)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6e915f456f509b0e5fcaf9248dca1c5caa538a81118605af4a04b74450fb480. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX762332824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe254da18a6ec3dc200949eefe75e40bbd99d6fa815f0bbd33298b184247ec9a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX762332827.
Poisoning Pigeons in the Park (Stereo Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d4910b57586600114131dac9c8713d7d5255e483e5c42053ab74ab3cb123251. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZU9S2300314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1653b5feb434e358231dac441d67f3dc7f66f4cddb123b989da05c64bb2cdefc. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZU9S2300315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c62c8e02e02708a4525607e8a1287036436ecd44f943773b6b421fcd170b540. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZU9S2300316.
We Will All Go Together When We Go (Stereo Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc546c97a0ec4870c87a3125750b2cc960fdd679ea3114abb0a2b792933eae05. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZU9S2300317.
Poisoning Pigeons in the Park (Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a373875bad216418ef29a55186a464912c4ce1d5d429fee8704d081081bd423. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZU9S2300287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21219d34bfca764eb57e61c3b49fada35106bcabd77b19b86786a8cc9503a81b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZU9S2300288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdb7f14a20029d9ef392cefddf1ff96cdfbd86ff67add2622e3b8ce8533214f9. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZU9S2300289.
We Will All Go Together When We Go (Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x219abf7af5c47e4beab17099b6c80403859300964c412385c89e721f1e78a03c. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZU9S2300290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2a434dc91cacc72307995fc6b79e585b74c8aa85e60fc5dbcdb619f8d83072a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSE91031705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ad9af454d20abfe2a77896cba491fe69c54e5775b854e12ad895a5d07833ef7. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSE91031704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9485ddd0f2e9c1783b8f6159a0ffa724fa9f3e67d39da1925f48ad281379b9fc. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSE91031706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccad40739fe1589cc99fd74ea201b30ce06c88f4e6a0889a9f4209c550a22778. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSE91031707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c954d1c1af6fa7fea1134220f6709a0f21fadd629753debecd36baf97b7c3c9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSE91031708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3d0d7b3529357c00a133ed869d4f951f1c874e50cfe0813dd1b9b67130a84d1. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSE91031709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe96bf576141d922f719810c8b9ddc2afc45e1573aa470c55a1afbbab7d475c55. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSE91031710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82794540390f4edb49705db8b8a6b3416669b4c0d2fe3237981f11e3fce258d7. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZU9S2300291.
Two of a Kind: Mike Sammes Singers & Tom Lehrer
Poisoning Pigeons in the Park (Strings Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7367365c8eeb8b66540373e771e34280bd0953c32d116ce3a217c3ec00bd556. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22245615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1320abf2ddfcfd7fc1fe2dfc52ce466cf8bf52b55faae07dfd0c2d9f6365ffa9. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22245625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce0dfcae91a53a49629390a065484112810b97faf64e532ff3860898ee019a5. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22245630.
Remastered Classics, Vol. 77, Tom Lehrer
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef6cedacbc5c98aeff70f04376330f199cfbe3b22e044f5c1468742ced51d28f. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22169919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc54c29944a1fec60612f35d809fae0e927c07f985a7a3544dc44ec3fca6424f8. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22169922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab6a07fb9205e201cc025669c32a384c4f9b9401f6864cf8ad9cdcab2f9a3c8c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22169928.
The Queen's Six Murder the Songs of Tom Lehrer
The Masochism Tango - Arr. Stephen Carleston
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7233de585561dfe3699502e1e8a80da94d4bb21153493da240c90580047329f8. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLLH2168901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x167f0fc764370d53a78776d5323fae03e9d5048a04818fd48f5b37978d5b168a. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLLH2168902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8d17a51f57e616c37080812df3c863c271843fdfaf12b6e12950b566e0838b6. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLLH2168903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ed2f6bba335e60c2b1d50b431b2a544154cc423287d78e2495341f8ce5fa6af. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLLH2168904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b4a101659be7d2719ad05e42a6c7a1f1dff7a6ee129191b200e949e62e1535c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLLH2168905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf29446896ff7df9d69f6f2be0dc9b1e013dd2d2e1882e4e8aec1fb355ea881a3. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLLH2168906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0039f6943ed8267d9bd50d1637b1312600e81f8ea112c087384f057ef1a932c3. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLLH2168908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x945be961ce6d1b71290863d60fdf9664801f2be940b439026dfdb9a6b27f8713. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLLH2168909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5db9caf6493893157fe0ecea1912bc09b1998c7c9c31c59bebb7cd23f8686fa1. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLLH2168911.
We Will All Go Together When We Go - Arr. Tom Lilburn
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6868fcedeb63c179d54093d02a1e91fa36ea55a84b62ad196c87a7790ec19274. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLLH2168912.
Tom Lehrer - Satirical Witty Musical Irreverent, Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa81dc75adb471d082c54b6d393f9a4b58d65087af8bc79273ceebc365ccaa44a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0R2309249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x429ffaa02b26f41b6c91382432cf06b82c2ed72dd1ea09a7fab264a2bfc2b5b3. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0R2309253.
Satirical Witty Musical Irreverent, Vol.4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacee463e61fb54253c6d99567efbb604b3694c4c4f17590d543e8554bef22f94. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9L2347821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c0c68c61a6f7a72c85ae5445cd3ddd57aa36f834082acb9df2361ad3ba9d3a4. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9L2347822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdacf5e21281592e415a4dcbc83753014c621234bc2aa03a3b8482dd07f9cf6d. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9L2347823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58c1af4b46fea524b08e78590c70aa5eacc4b26f60057277967eca1639acb340. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9L2347824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c67c075397ad219e0a572ba81bd0501d77d680c73844de36fe2e03e853ac258. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9L2347825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf426966fe2e2a499842ef7e9708ae8d22ecfd87948fc13cf41ae31dbaed7738. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9L2347827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf54b5620af19138d56366fba9d17b75bb7bff071c588bcf922211ea0e423dc2f. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9L2347828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe5ab19f544d83e7a10c1410907cc8c6b654fbd612a63c09a5e2a6c56d6455ce. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9L2347829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb9f3cb8f89ea46d127dcf663af43d6dcdf7485a0826cbfeab85fc4227d31660. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9L2347830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf90c6ffaa6b6eaac00cc1260e96ec041272c33befce061c64b892b8a1b34909e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGQH1913519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbfaab9c253b153fa7e5d8322bc1e5f5d303eba118ef2027091af07ec85200d1. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGQH1913520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fe1703b07006c2c1195c9edbb72798f533d560c02c37f71d94e2555040adb92. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGQH1913521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9bd213627c42b96500d40f7ca845a30e3c9d3fa96bb82cbeca155b84deb8d7a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGQH1913522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70fd8fbd4f231a1b520fbf55b8ff3e23907516c7a72738118fde4c1fb1693bc9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGQH1913523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41f0cad97d2c6c42ed05e98dc517e11f894116c605ef0c7533a1802ca6e65a08. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGQH1913524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8274397b95f6a2aa2e2f54e59caf04160d3dd2b4f449f088d34c3c59165a5f25. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGQH1913525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa57a50a4880cee26c0ef29174e907a3ac048c3926e38fa7956122bbfb9aa6588. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGQH1913526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e0a5bbfee2a5cee5be9ade4b9e909ac27a3dcf53d9b5c597f6dce877bf87420. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGQH1913527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc06421c87fca232232aa70f0fd6e333dc58622efdc96b29a1017257850abc419. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGQH1913528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ec54c186b2c7dfc4dd5b0708b14e8ee6721f16fbcc9bf33e2112f08197d0a4a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGQH1913529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x096876db43783ee3c9bcfbdb44740780c1fa983f6689cc0d0812ece299510d05. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGQH1913530.
Poisoning Pigeons in the Park (Piano Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbca4233c0fb9ba3267b632565d91508cd5bda4b3e41d2aca3658553bff30588c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGQH1913531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb5876f89887df4cfd354faee6bc048e76f555ff7083f2fb4206af7f13b72f80. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGQH1913532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23e73dea1826b6499f6062cbecb913dfbf16fcfff40477617b33d2e7a04b4c5f. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGQH1913533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcda59cd8fb99a553d6224ab6a6aab672d2970ec8f96c3fc4ce82fa52194a6ea2. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGQH1913534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x299ce99e6c5680f9b601458f853be7171469c368bd95fa159c144a7d5dcf9131. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGQH1913535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4af45cebcf781844457147311b1f0b5d7ffa13dfc248f7beac5ef7ed0b33899e. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGQH1913536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61a06ee63863b813821c55b7684811e3b3da4d6e66a00d8b446afbe675ce05f0. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGQH1913537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90617e4a1783f4b48ff5c3840485e950cb8e4720283b6a3385230ccd66716979. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGQH1913538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88c395492b16219201177ed6c05f7a51d1363a8ae703e46df8d01b0bd97c0603. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGQH1913539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce2263f55755d8fae8ab239c8b7ef6972e81b33cfc447e3e74dcc7811ab4163c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGQH1913540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd628ee59ceced876e2e4396675f59eb825d696f5473df8e2c972f90cd6e161d0. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGQH1913541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3ca99412e552a12488c817900aff2f18cafa23b70bea9e725e444928cd2fb5f. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGQH1913542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f49ad33ae0155154138eac0672b5e35f26d355a81bd7d8f7eae813aae536927. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGQH1913543.
We Will All Go Together When We Go (Remastered)
That Was the Year That Was - An Evening with Tom Lehrer
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f6931b1f554a770a09320e943257780187e480737ae198f2f77e8a66d4de295. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKU6H1936569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0339bc9ba6b61a5d6a340041ecb29c36996110c693a8ab95160314a3f7f4ae3e. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKU6H1936570.
An Evening with the Infinite Genius of Tom Lehrer
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b19b5f638ee452e8ae66d6ea55e97d5edb5dcd1561291838c2adf79707b82f. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKU6H1941499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe92eb6575837e07b1ea7eb35e803d865e0513b124cad33b2a25711885861ac7d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKU6H1941500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x367f1f1e825d1c6229e316934d101e37865804bf8d8fd3043ec8b4edd0158c82. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKU6H1941501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x603723f8211fa870da40d9075c5108c622847abc2ce6423cf7b647022985b199. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKU6H1941502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd435775575835c7e1e06fc4466bdf684157d083a4673a211e0540a516b0ecb37. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKU6H1941504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf1bdfbd572980019039193554848a463509bf5d63c3bc4a24add4642ac049fa. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKU6H1941505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da66442c1c93dd11feafcbae00e88e223644a2954a76ea659d5a2d325df65b3. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKU6H1941507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x194cf06d09848b4b96e1d3d31aff993e30c43a016304775d509c0dab4d76f465. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKU6H1941511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x888c8e75c4f7866e29a36db6bef9e89d22bf04eeb630fe954b7013bb8504dc0e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKU6H1941519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc53ac9de05bea024ed1a2054bc07607227b9b2e58e974c0bf94710c0f5d5501d. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKU6H1941520.
Kings of Comedy Presents Tom Lehrer and George Formby
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaba9b4f839b543aee72fb17a4956a23fa27455de7b7c4209e6f2eb1efca68f88. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGN31589804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a12f22e781f2931155d6d6550c58da93d1a9342980669d964c3deda974d6549. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ91462245.
Laugh-a-Long-a-Lehrer (The Dave Cash Collection)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d495feeafc412e7f2097b3feb8b0a8e858b626ec77d73ce3ec3973fdec8bd9c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA371373272.