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 0x7bc997740d1a4f8e4143e6960a990fa523bfb4c9c9bc2df9f5758ea7a105e3e0. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/27fdf389-932d-41e8-b24d-2458b78820d0.json and https://artists.proofprofile.net/proofs/artist/27fdf389-932d-41e8-b24d-2458b78820d0.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 0xdd1721529ec610c4b4f6c8d7c02d735fe91b523e4f3537abd1ad0aa0ecaeb74a. 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/TCAFO2192091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0746cd8ff9fcb13796f1f9c1fcf0fe7da9221a332bcc5af76ae54c8774d226d0. 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/TCAFO2192118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf93e17d7b9f1eb7c0c2b49a004678de97c43082d8151324f1ae821502cf60935. 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/TCAFO2192172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23bed14bac88a0062250ffd55a9e72fd8850bed2aa6090745051d406da4afcc0. 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/TCAFO2192212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe776c1abf21c52d5f6961286ced178d9ef6c93d534aa34255c366d5afb2562fe. 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/TCAFO2192213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x235839aa0031451eacb032a655a6bd58a52e6df0071a6db1ada18a2b1d1b22e5. 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/TCAFO2192215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60a2cfc56e5a83242984a8ceeee228c7ed71c119290a5c41396201476973c47a. 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/TCAFO2192219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74f083adef3368c6875a1aa325bd1eea292b324dfadc979dab3d505144848d83. 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/TCAFO2192083.
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 0xabcc12ea939816024923f7c8b0fc2baf8c8d2332cf0f6e02d39109b4dc912df5. 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/TCAFO2192106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8884a9a549c6fd1ebd709a4f54a4be2c7f9a0e014106da8f675b20a1a417fdc3. 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/TCAFU2169920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f2505c3aa770dbe14e3e59d3ad481d4003e708f57debec90a73f5f077d5a3fb. 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/TCAFU2169928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9eb41e494714edb6816ee7d8942f1b99accd649da0f1a8daeffa8a6de80d9b3. 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/TCAFU2169930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c02a3b0614c260940226f13d8a2c839b2ebdce74f4067a81a550423b4cc5be8. 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/TCAFU2169933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32d343511eb585b5ef4c67bf0aabd02eb21e3572966206b2a52ba026a0481aed. 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/TCAFU2169935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ea77877ace5991f16ca9cbd70f8371d77ed4d1d98873e6d9a9218316ca2bf66. 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/TCAFU2170029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0d86e29b7f39f796e1979194d7f13d73a044d3186565745a7405e44a118e39c. 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/TCAFU2173029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ff524325cfca3dfb8499bb2736a2c8934356c4977b1cc678fad2f6d0075edbe. 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/TCAFU2170031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef556dfa8f4f38ad5f59630fa8962d8273a90b23690d00adea95a0a5725ebf0d. 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/TCAFU2170032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2a2d88d093423b459f0776ae125741f2b9570b5ac730417aa58ac64bda07617. 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/TCAFU2170033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2db43fef5f30e9668be93d613d3dd7def3bf2205deb559e990b53866828185b. 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/TCAFU2170038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba9f08d53e2e56b375b17407a77826f553cfe4cf352300c12cca3c9ddfa57fa4. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/TCAFU2170040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x438bfb3b675c94f9583a8c8e7d9756da67fbe411b45b632422ed56d787efcf31. 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/TCAFU2170042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf361068117f1988fbdee4a53d0fb59f014fe5238da289736db08122b4893bff1. 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/TCAFU2170044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11ea439d675eeafa1c5535000bfefac4c36bfed9a8a57fc78d7d416ad66f475b. 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/TCAFU2170045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1fed4de3296cbb7b0d4b55a8fc8d77dfdef1b6966d098099a69f9015a02392d. 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/TCAFU2170048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fe54c8caacba30481668037ec9cbcaa1d77306abf376804d73bfc38c54ea6d5. 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/TCAFU2170051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25ef369107100b43d3b7881fcf8714d67810618b69efce11965b9d0ed2010125. 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/TCAFS2132816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05873fe66ddf812fb01705b17c7d612a1f1ec1b39890854697a36c2a732d52ac. 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/TCAFS2132839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aaf4d9000f184491d5a82707684f7f6f0edb73004e191ffa3bfa69c3acd1d6c. 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/TCAFS2132871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d4ad92c1cb61fd6813ac6589e7c35c3f0af1a15ce0c8100baaede27672667ed. 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/TCAFS2132897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3a713df7f68641e5e895a063e8fc87c6f5678dbb556da901673571eae119888. 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/TCAFS2132905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x377cb52c93b4392784056ff0cd06cd9eecd509711c2c9b69426f0e9139dba622. 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/TCAFS2132830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e15920e22107ca9674deacd34c8eccf953f3ebe66e3f7fe961e8d5750c5b56d. 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/USUYG1375179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x671d57a54b4ec1646948cd413821b9139b8bc56c2ae2ed762b73acfd3441aaec. 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/USUYG1375180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x535a9c3b4a40006c21c62f1757966da774a2127c776e2606aa6e04ef5752db8b. 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/USUYG1375182.
No Hook (feat. Teeglazedit, BHG Action, Lil Axion, Gwapo Capo, Lil Chicken, Looney Babie, Jigg, WeUpNexxt Fresh & Mula Mar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae04fb49ef5b47e31dcd6f9f752de3c7a1fcd81c83238f95beeb6cbf3ee040e2. 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/USUYG1375189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d3eeb4a6db999db2fca0785369040d2371c082ca071b15479f67242b903de21. 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/USUYG1473510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x219027e457a4bdc2f6b450543e1e78d96520b7a2318c0ba55bdcdfdbbe06a892. 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/USUYG1296874.