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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd972e13fb365b89a5a007d629a815a8d4dffdb6324e54c788de1faed31c01e12. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c05baf49-f6ba-40d1-964d-55bb5e9c85bd.json and https://artists.proofprofile.net/proofs/artist/c05baf49-f6ba-40d1-964d-55bb5e9c85bd.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1938d1309eab44625f000fd1f4878de51aac3be1fdc6e3a0eb23d8edb74c0a67. 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/TCAFL2167564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ef80b4644b4abedeafd4ffdeb4b9acebabdff28f2eb8a8e4b2557413aa02ad. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCAFL2167577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69ea17284db772a595ad3918bebd58e37e5dffb60027441d06ca51e83533b10c. 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/TCAFL2167587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9375dac074d261043e0b0874012b37ddeae58296bee4ee5f2ed696e0e71a53c2. 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/TCAFL2167596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a71b7e4331488bb68a4bc9285e0dcc77e0aa0e702e211f30360e3a51158e96b. 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/TCAFL2167616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c899bfc1137b4cb8e5611d1c247650c7ef63306ba434a8474b77c66ceefd6ba. 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/TCAFL2167665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa959fdfdf38546a1e97b5d4025a469c9a20bdd214ec2330a16e661ead2f4c1b6. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/TCAFL2167533.
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
The Christmas Soul: Lessons and Carols (Live at the Advent)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a3d5f47958e3e4aa70885f89f72ef031d8ef9eebcd03119797cae6d07b5ac3a. 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/TCADY1808337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2c5d5af1bd2fbc7c027aaef013afeeb1175bde130a4bb97cd1e7003fad0f556. 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/TCADY1808341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x017f1f5d6a74fd9c34200cd48f75f89690aff37f0feef8c3c7803dbd9e9deb02. 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/TCADY1808343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b2892be17c083a88646b16c8a4ec3c16e35e35a6d5be266cc5c9935e2310433. 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/TCADY1808350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c62f2983d3f51195808275eb16a526f207661501089e3d3c9f0cb5bf19faaa6. 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/TCADY1808354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c9b6fcfd6fd1c849e33bf5dee03e21e3da56f06821484d75ec4b18c215dd92a. 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/TCADY1808358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fe86f9ba924c800ff4558f1cc982203daea9004c7cba10a137cce78c5c6f716. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:35:52Z), 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/TCADY1808352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2603719f55d64e61d401d9a2d86cad441d7833a2736676319d133e72be96db1. Chain 2 (Bitcoin): anchored in block 959146 (2026-07-22T15:41:47Z), 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/TCADY1808355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9545974cae36c5c09ed9bc3de45b2cf1d8698ff144443db48c20078b0fd5662. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/TCADY1808349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa12223137a08adf1d2a598b256073109c082280ee72edc9f616091834698f879. 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/TCAFP2141130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7feac549f212689f0c6d1f7b9ae065ffdec11db40f621aca1c78d5017add18b7. 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/TCAFL2161061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc054bb630c7eb74a5c50741314a6e71b9c979ac919c9b9b5c10bba928e761ba4. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/TCAFD2064354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea3a2215652f615170a1ee35ded80ab88abf5dc4d184cddf3d9c301538b7bb06. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/TCAEY2007393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a0e06e90687828ae969de635d778e06ca4698831346fd99cd4fd004f02dd70d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TCAEW2066932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cd2e055ef2e6193e64c20d05266e466fc456e418156120299b1bb6a30153d73. 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/TCAER2015332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbf38e3d4fab3a2f509bcabe4d6fd33b9548e82b79b3d53d69557c8d3f471b39. 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/TCAEP2072881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37952f8923b4126d13c549c4e406fad4d723c30009dc0937c242b84b9517fcb4. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TCAEP2072889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce36e09f269c147093caf2b3fcba0f316fdaf78280109ec0389ddaea81679579. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/TCAEP2072827.
O God Now Let Your Servant Depart in Peace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1902ca32394416cb27166a3de17639f5f0effec3928d7567533ef1358107d4cd. 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/TCAEP2072901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf85b8f28fb388d7788e3777c84f14ccffa0d285ae00a67f9d5d32494e2b57446. 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/TCAEK1920419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf50c14c7a6fc0b08880c582dbd1cd7e21480a7c4ea3326b7c2d082334ee0c034. 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/TCAEK1920570.