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 0xf0a57e70952b66bc89f43e5bfa196f660c6f83575db25060bc1a400619d1bae3. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/26861e87-c03a-4d95-8f8a-e1d21ac60ac5.json and https://artists.proofprofile.net/proofs/artist/26861e87-c03a-4d95-8f8a-e1d21ac60ac5.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 0x20af20758771bde654b3684aa46630ed9be87e1fda3695ed45ddb6f1094e0fee. 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/USHM91067111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0e22fb91b6f978eed9e8b8ddef30e7fb9a32122e5e17fd459921bae1d5c31d0. 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/USHM91067113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45243d2eb12deee0ac255fb17361daa41b41fa37622e86337d0c73a460613c30. 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/USHM91067112.
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 0x795564343aa253d15e9f91aad3665da4e7912803805bffb187f30443117b775d. 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/NZPB12202509.
Sweet Soul Baby- Rare and Hard to Find Soul 45s
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f1421a83c0712fa2bab8aa64300508bdc68bc2458671af133c6d65fc02c88fa. 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/TCAFM2186869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f304db7dcaa63126248a032106caa98c18d9f350075acc025465f9c8ee36d46. 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/TCAFM2186900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b9a97766adc559ab8e5786fa1391da4f9a09c66712dfc488eed552428f9e002. 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/TCAFM2186921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x291df20e44ddbc7ee74ef97bbb987b076d275eaadea7c232d29c6afc97546bfb. 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/TCAFM2186934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2d2f2ceb36cfb87c98f423da49418dc55b4100c24c9adcc7a67e6aef83c2e35. 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/TCAFM2186947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x406ccb2505d503e999b0be89c6d33c174098ccd838f415345da251d47564dc6c. 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/TCAFM2186951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b4730be7b5c6cfb6fe8df2d7b5556b55770a2ec0403175614dd772055197365. 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/TCAFM2186956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64615760c978e1ecce01ea6f3f4c8699e05f3a0c0e639b65e2ad7a3e30d74657. 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/TCAFM2186961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x283a1fd4ac5622673ce34d93ed32d87292e58d558a7f7576d7c3bd7f7561dc7d. 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/TCAFM2186968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda723550e1e15c5820031fd5ed64f57cb8133f315cba07dd9801b26b85cbeb75. 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/TCAFM2186979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3a3163da80d0ddca4d297a4dfbb58f392f2f08241b83270c24fb1528404e878. 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/TCAFM2186986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8edcd69970c0fb09797ccb4838b67556dacdbc9de5fc598336d2b33bb9abc665. 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/TCAFM2187061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffcdeb0f139c4bff92351469c81d9cf6cf5785db31dd1dbdcb7894aed960840b. 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/TCAFM2187065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05b4170d1371536737e04cedfda131bff515c707e5302e877575d035fd74ee01. 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/TCAFM2187075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7c185f20912c9863ad21f2401b05ea36d07b6bd3ce82ec255eac7798aed5a5d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TCAFM2187081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x944159923ff585f3d37643605919c47a0a986c00c6405c7f7ad2feef7dec568b. 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/TCAFM2187091.
Robert Vanderbilt & the Foundation of Souls
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ef587354d60fb4e3bc45ef28d485f95110ada8f5326e2ac6f8c3972d500eab9. 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/USCW61304001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86cf50635b5e4ef6713cbcd8c2fe62dab6c3af610d1f52f2d4d5b5dcb185b124. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USCW61304002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78ccc3d44afc5a7da62291a833b2b005bede7ed5fcc1b20fa1cbb99a6264e03e. 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/USCW61304005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99bae1d4649cac56154ee1a8ff7d6aa4c0bfe286411db4d889eced385f2f2019. 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/USCW61304006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x087f8ecc33c129c230c236a7732555c9a196b01763510c9860bd789bef53fb04. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USCW61304007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81c1039e8b424c63516e6bbda5e95e66b17babaa295ab536645e29f8bc26c83e. 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/USCW61304008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73172b7179b760354933bac0b8416c3a6b095a81a27127084b29e990a948fc15. 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/USCW61304009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a828400c534b35198ca6713abd157bf4ab5aaf5a3f114a20064490087b38f35. 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/USCW61304010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa49abf4c3d8b71183cd9ca50870b0a1d77ad04a943a183d2d39cb45c3f65fd8c. 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/USCW61304011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d069cce0abd9a211f1e2863f8c557599099d47e94b36e899f5b55f4551690b9. 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/USCW61304012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60555e8503ae2a4bbd1a27941e222c3c397bd0ee65aade5f1b488f783c0ec412. 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/USCW61304013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23b89603bd26c3abe2f4e75f1835d068edb3582fc03deba86c8fbfa859d4b93e. 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/USCW61304014.
Fantastic Goldenaires of Rocky Mount, NC
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24c87371111f224bec587f2ae9b8d59976064eb4afbbf78142c5553f24275e8e. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-17T00:14:11Z), 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/USCW61304015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x500a1ef8e3547298d6870110ab26a2d7eb18e6d5a961789489305ace4679273e. 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/USCW61304017.