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 0xd09de2b88b21c87d98f69c7b2d1e4ba86a273ce492c043e024699999b4bd3fa0. 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/078e033f-cc17-431e-9bfc-648f794d1699.json and https://artists.proofprofile.net/proofs/artist/078e033f-cc17-431e-9bfc-648f794d1699.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 0x375ae9642d7d105dda1b4f40bca2d58a0de5e775a18300a7a3049bc84d60b375. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USMZA0810201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e7b5dd09cda0bf5fe6975a4bebc7f7ae3485d99753eab721ef57267f817dc9. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USMZA0810215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9627c18e2ca32c3a96a26c567407bc0f1533b564d8deba290acf2d1be72ad53. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/USMZA0810552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x219ddc5409fb26650caba7393c99f49f702051693ec27317e6b595c18e963ffe. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/USMZA0810559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1cdcb297e890aee85f3147d583db1898e92cb779e57f95e1f3f4fc9ebccb137. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USMZA0810531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0dc0710075f417eb0d067cd979e721900008b55c55918d2a5911a3ed905e66e. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/USMZA0810509.
My Hope Is Built On Nothing Less - Congregational
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb33d36a2620654710e0f839b46178a81b34d8b94dfb2c6b8b556b747bb0a6c12. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:26:33Z), 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/USMZA0810514.
Why Did My Savior Come To Earth? - Congregational
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11c9186acd3b8161c51758e3d6ae473ace25d2ef41db872960c4ae8e6cd423d3. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USMZA0811266.
I'm In The Glory Land Way - Congregational
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x446dcde4526bb1d716b3c06654c9c11d4ca8e4810f816b6d60d2f3ba99f0d38f. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:49:26Z), 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/USMZA0811276.
What a Day That Will Be - Congregational
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4f7ecdbefe21329512dc29985f31b3379cdafe6e03b7cc15fc7c8a40da884de. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USMZA0811582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf9bad2946bcd8adefb550745aed93ecfebce6884909b8e94d3536109ffaa2c7. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/USMZA0811458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ba486c72758ee8660dea56b28dc00dadd285eaa5e43fa02e63feddd5148af74. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USMZA0811466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a78aa20a03b8ba0eb175a4cb5831038e133bec1786dd0ee8e2c4aee97c260ce. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USMZA0811468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77a34015d506f62ac27da6eb604d3d950d93ff4c493738a92a954b2e74f206a5. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USMZA0811490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41923d7ab176669bc6fd69308bd988748657d67440233b580551b47614f6e7d1. 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/USMZA0811491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea1361cede6b4b5e88e9e7ef28bc89aa3c5f3c478cd21af5931543185298f6b1. 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/USMZA0811498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa103955cdf8a439d30d8856b3e725ed5d68c26b896f95393830f4737038c23d4. 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/QMFME1449191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b100a0db9af6adc33a726744f2c72ce099f6cb001867ad0ef112fb62207de5d. 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/QMFME1449193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5531c9121ecfb7ad1f6410658162f5c9cf043fb9d58fafafb7c09f3075aa7761. 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/QMFME1449194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc99265f6c7185f0aea86e2c92a4db5930ee1759f6a0d22904579feea83cf1619. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/QMFME1449195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeec065f253eec958fa77d52fd4a8cbc378e1f4d9960727fddc7fec4dcaf9d61e. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/QMFME1449199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20450ebd68c00d57b3ed6f3f4162964d01294d6595ee01f56eaac4ed1730b291. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/QMFME1449205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7651ffd513e14dae896193adcafd8a4bcaaf0d84447a47b1ef48d5e5a98eac5. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/QMFME1449207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4daa402d1b866fa1821adf730666c7919e41f91cf85c952727bd573c39d32c80. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/QMFME1449208.