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 0xb93ce0c56c434439d0d0ec39f0db1c5be7289172c71faf9105fc33e720149b1d. 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/4b22e76e-d94e-428d-aeef-bec520b09467.json and https://artists.proofprofile.net/proofs/artist/4b22e76e-d94e-428d-aeef-bec520b09467.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 0x558a758487add3d2e6ed6b1dba94873a4d543f4b627dcf1dcf5d3201b0eaec12. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZW9M2291275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x017d83e422b43bf2ae188e85712d1493238063860443d94576e378d50d97caf4. 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/BX3CJ1900065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc47f2276d89f1c604cd109cb16fb30606db9d89188b8fd4ff031069fab8ea27. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/BX3CJ1900064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f01bdaf34dea52c137be0816e31c53c5d0e9b7234389935130f0bb5e1741e4b. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/BCSUV2000048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea958d5aa8a5d8e8c661144063368533a39d7bebd53a6354fdaee7397d405945. 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/BCSUV2000141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7af901f1887b241bceb34ee8ed5d1b4293d61a3630f7ac3ac69442bb925deb2d. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T23:09:11Z), 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/BCSUV2100079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e9cd772707d537f4a800a305ea3fffb281509bb272db6096a7683d198e5eccb. Chain 2 (Bitcoin): anchored in block 957868 (2026-07-13T14:56:55Z), 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/BCSUV2100082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbabd391a5f4bbb7ed3ba5fb21495ec900c13d582629f3e0899e2214fddf1ca6c. 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/BCSUV2100120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6d095b8f74f5a5636454a07c481edc0334016a3a5e76865d4421ab697f50249. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/BCSUV2100118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ac761261d13ff430c5034d9f3195cb33588e5f11f6501763c54843f886b2e69. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/BCSUV2100299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa822d19aa7a6cbd6da7e8fa4bcc43b2180c9a6ff989912addde234cd724f1dad. Chain 2 (Bitcoin): anchored in block 958117 (2026-07-15T10:20:43Z), 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/BCSUV2100287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f2b34c1a51d224eb835d9b3911bd47dd95529fba468a489ddcaaad7188221ff. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/BCSUV2100300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3d56e02e2d851279d2d9082dc480455536c6c8dcf4701e45432103d0ee79487. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/QZTPX2346358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4940d945e807083633a4144e9751019d55a835e7344b213c61ff6cf3dc647f04. 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/QZTPX2346359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05ce4d55535c587593b84b6884a321d968e701b5255777b90556b21fe8601968. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/QZTPX2346361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbbbe5d494890182c6591fa6a4e4cae58f5b8d3a45f9da0bd68e8971fa577f80. 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/QZTPX2346365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x074d8f857b85282d704298efdbefd187f84394abe0432a978e5ad74b499cb1ee. 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/QZTPX2346368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfeb118e6a384a5b3310d97da5e80ac50fe2ee67c2d4393b7043263faadce9be. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZTPX2346371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b42ccc93d13a2f40a25cd82c6fe824b450989d80358a47edcae8b1e0edec7cf. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:44:15Z), 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/QZTPX2346372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07d301ca705395683860392ba52407f924ebe5a170ceb86f94de8bca29ace062. 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/BCTMM2100042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cf4e5c1379516b685086794a0aa648b39bc4875f04c8e96b0cc7a389e085c1e. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/BCTMM2100040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbea4658aa2d31d9fe0049a6084affcad5aac02f67659738ae542052d2ecf03c5. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/BCTMM2100045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x740496004dc8f9e19b72975b78765fd452c437ab4d5454340965cc9cd7b5dc63. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:51:20Z), 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/BX08N2200265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dcb2e4a6f3a9b58a78a92cf4cd617ce2a7c415d39bdc80172913bf7f614d4b1. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZNJX2373948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef6716f2cc2eb059d94bfefbb97663362a26c12221537d05ff25c3eabb25f4b6. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QZNJY2398332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4934477dfbbba7607fe9009eb96268cc98264c82e704c48fc8f40d2e166d8af7. 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/QZGLM2474320.
Tbt da Danieze Santiago, Pt. 1 (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ef79d9ede138b292a42254bffc4cf7d7ae225282d285936c183fadf3cd93e99. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZMZ92519551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78481b847b726592c9bae6ee412c07b08831ca247a7d5c780a0b73243bfdb835. 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/QZMZ92519552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1961812a68166ca6a9db295228877ce5a6bd1fcbcf145d400a7cb41e630e34b3. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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/QZMZ92519553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5000e75c74a1572819949bdf7b05fa81b546265edab346656dc070369e238ae4. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-17T01:00:17Z), 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/QZMZ92519554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x512fa18765022dcf87bf84c858d5a8a90c70b9fd0e94ac1b8e411168ae939233. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/QZMZ92519556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf85e04f167b8af6aa2ee8dc842a644d76cd43de1345aba6ada0c69c16cbd372d. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZMZ92519555.
Tbt da Danieze Santiago, Pt. 2 (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x123643f46a65ba34f61ef01d64fb02f684e7327b566f0b393ce2e79baab2faa1. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZMZ92577187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15e01a30238447154e99206c24b00b371ee75bb193e4630daddf323ae0dbb620. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZMZ92577188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8528d1bf5b5c762dca0efe8767f5cef29d31ed45bbc39a273196a9e9918cc6eb. 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/QZMZ92577189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb160cad8a309a5632a07755c9bd747e38c4138ef88edb8acd08eb5c76375603a. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZMZ92577190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c589e082932be34600b0aed7b2c3a31bfd2a7853e5c1b7e3ae5ecb3a6b19a34. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QZMZ92577191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91332d5b188d3b5549ba7253ffcdb5aeddb794faa19c445d889dc13ad5b44e4a. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/QZNJZ2533012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60c35aa6e23952e39f83e8ee4e86dc8bc7e841dc4518dad4382a0309c3b76296. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/QZNJZ2533013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74bb52ff1342b94c2b1f9317ff8a0e5c40b9cd248d33cb0c7125ad8b4735d5c8. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:05:20Z), 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/QZNJZ2533014.