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 0xdd7fd14ffbfcf1deda445168fb2f7cda4e8a3721412ce7d84834328785a4f331. 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/7900192f-ff36-4bdc-9807-a3d692d6746d.json and https://artists.proofprofile.net/proofs/artist/7900192f-ff36-4bdc-9807-a3d692d6746d.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 0xf7485a372962c835c659a90cd43a23c363112c1132dd506b3384082bad7aefc3. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GBSMU7661188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f718390c8d098dcfbbbb62df3bb06183b72e72cb79b48eff9db1d72d22c6a10. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GBSMU7661274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3648b9796dcf71dd46b37174f2c058aef9f7b5b85d4aadabcdd8393b32015be0. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/GBSMU9470055.
Unrelenting Force (Chipmunks Deluxe Version)
A NIGHT AT THE MOUNTAIN HOLE (DELUXE EDITION)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c202f6e82d9b274b291c4f504e4a9195947d509eea73f096238360914b36d81. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/SE6I32481577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa66fe5073ab6ec69dd5266f21ace1f6254e4a609c826daa1357088a69076388e. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/SE5BU2400040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe95aced6f98812280d9e2a337afb8b1529187a6ae83fadbbb26d737b84083675. Chain 2 (Bitcoin): anchored in block 958666 (2026-07-19T05:00:30Z), 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/QZHNB2416282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedf9ff3d4d416c329459aae516f5608dbab722f0c003bc50975cf9595a57421c. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/QZHNB2416283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd482fb21c1a61eeba7dbedfc80de6912e22d31b9b1f029a0f0642a808b7c1f69. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZHNB2416284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6d6111b501f826cf2ebc59907f57fad639f0377d5083fbdf84f40cd7d454547. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/QZHNB2416285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6196e7bf04fbdd254578fec65355434602c95dbe978168d7a350be5e499bd2b0. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/QZK6M2470334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x718a57d4321053d8bf5030dd2e46225824b13c8da79ff13a420df8632a8043c5. Chain 2 (Bitcoin): anchored in block 959011 (2026-07-21T13:26:15Z), 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/QZNWS2433880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f89a92b7cd1823babbdba520cd2e381ddb4711c5050b75c7b8de45f1aa0d774. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/QZRP42482764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd22d389c771a287d3d1b5c7dbc34c2990a9df27fcb2626c7da95890519f0634c. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZRP42482766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd724b1b80fbd7bc5fbc59a04df4f46c91ba7a223adf4ef5fc1794406c1d466ad. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZTB62483246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa15aa0c6a7014f1e65523ebc64ade210cdf5bfb2a6ca48ba3bc504f10222df3e. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/QZWFF2456842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x461a1b9908514966293d6b45fefa80f6f82196a2d16dacedac2111960d18fbf6. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/QZZ7K2405932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d12db6d812850b0c7a4084452021fc658b4faac09ba9cd6fd12a9147a44ae80. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZZ7R2448117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa709a5aaafd909b500875a08a78e0585087c37686b6e76bb5ba0ef5506ea3e0d. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZFZ62517880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77dd9ddcbdc21f63fe2eb5b6a51fe2ff0ada8dd1bfdfeb1d2a2fa6884ec18da0. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/QZDA42502638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x913c4abcceff2a0705d06f2e856ca80e4a0eacf91581a82c8145502ea85ad6ee. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZES72593583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa81b6cf59f0240f9b6649f8d05bf348d9dab4add9a86568c44fb52223145aaed. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/QZK6P2567730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x758d68fb0bd42292bec863e882c22fc282a7d87800225f6cc4e75c3f0a888198. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZTBC2593044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x628467d4928eb944f15413f698f6909fb43cefefda8de74c9d5ffe5adb401778. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QZTBC2593045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8186dab0fcc824400332479e90a5c3b3973b3bdacfc7a4487512afdd15f20bb. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/QZTBC2593046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf20d48910f761624b655751c64c469e3fd6dacebec55a676a57da9f1f9e135a. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/QZTBC2593047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1369204a8adc6c66f8b0a31924d4af6ee5083e16e1b696fa42f39ca8814e90ac. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/QZWFT2507629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f6fe0ba31258c25f0d8dca442abe55650405208f34b42da29663eed6970f1bd. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZWFT2507630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3a6a6c1da5b0d6d420dab6425d4acfdfa88883bff4105bcbf43492d305a35a2. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZZ7L2517865.