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 0x6df821ce1ccca22ce48c21b293560e57fcfe6ecac162f5ad93b0afcf73fa1c84. 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/38e778d1-1f6c-4bbc-a920-b4389c48ed4d.json and https://artists.proofprofile.net/proofs/artist/38e778d1-1f6c-4bbc-a920-b4389c48ed4d.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 0x3b967c5257252cf1ea4dd0ea20ef22b8d7bf08d6bbadee6e2a588cb985f0d1a5. 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/QMDA71854625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7bb4b59f57b7ab66e1b70d553e11a60923ee46b7bc476e18562be0aab24cc21. 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/QMDA71854626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x872382ad6069d0e8d5936adf4b069f7b5b605140bf76deee464f1691e5ca2823. 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/QMDA71854627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc475d5d36a238f97a98644778532b1495c69b02f2b2338ebfab2bf45d7586a9a. 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/QMDA71854628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27bf0f082ad96e908d2a7d56823f10df234c63837e4e23434af708ccb6f25e30. 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/QMDA71854629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06f7a3ffde78013b4395966dc6d09b4f758e10fe7955c63fb5786a489b20ae77. 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/QMDA71854630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25b0ed210ee38fb34b00caddd65baebe0a23d2c50d4314efe505912c809edb43. 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/QMDA71854631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x300d9648630933d197cd5a792b71cf309d0102f963bf2e9383b7ed6f6381266b. 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/QMDA71854632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa91eb06982c1feee0021038c9f4e57cd10d74f724114dd4c5a51802819c9ef08. 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/QMDA71854633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x084a7ce251d3e79a06aedb835f509fe9e35169774145649612c308b0d281c485. 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/QMDA71854634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0450f41b4cc83c35bacc65cb7d64f9427b98d901b9d058727fbb7cf4436a483. 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/QMDA71854635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2baee1e0bdea4b1e9560b3a25f338f5cad570390ff784f5d426460e7091c26f7. 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/QMDA71854636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a4945dc5ee6aea0b23d4aa3b1f98aba68c7b52e1f5255d32b09a5b3f6269e90. 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/QMDA71854637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38b96bc588938ff32ca63ec78755d5334d1d1be5f8378c2e1bb9694b1e9b5d76. 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/QM4TX1861610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32fc9ebca39b1e8cc16e391b5f2d292288f7ca60b3705522d4acb287895d6240. 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/QM4TX1835052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf6cd7681eba6a8b435442a1d8323cd97e4a7d9e2c2ab972c0ce4681c0c8a4ba. 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/QMBZ91769179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x526310bd28d2b03f68ab7f41c80f5e9d831734a037028c53bf2ce3de82b4e0d4. 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/QMBZ91771429.
Madrugada (feat. Killatonez, Towy, Osquel, Sammy & Falsetto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57b4ddb2bdb765ddcf4c4d96bb40d48f06277cbbd4c1330a461000aace2c719b. 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/TCADC1785953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54776361bc457975a990a906868229a26078410cd25d2d6c441d8e2224616ac2. 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/TCACZ1798112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a69f81b8d674a5c16d2c138ab9525c3c29d4c01b6fd9145a7483bbadb654eb. 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/TCACX1798110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc56e3da6fd742f6dfb5e061f1d637558cd7066d92ceaf701fb071f0d2ce3d46c. 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/USA2P1881948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b807b12e78b501fcdd6bccd5e6bda978a6ccc5bff74dab440b2e07df28ad89. 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/QZQAY2304423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaaca87d8477e454fa178621d478512a75df27f8384d2336bc4903d898cff908. 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/TCAHE2365705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x070c1ab8728890f59679e42d4e40a3e2c7dc2ce443f29a6453517f7a998d9b8f. 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/QMRSZ2002744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x395b05d10ca95ac18774148cc6ab91aef6660cd183d1e9571b04e903397fa5f4. 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/QMRSZ2001672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98c6123f6f628ba889a957353e50f0e8fab52b77b6440a066dcf3f7265779dae. 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/QMRSZ2000131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9f374eb18266eb7e06b85919efc4e3c53aa729412d4202d1514963a4630dd48. 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/TCAED1950391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8da5b30f4837f275ee34fd6a2f9eca16070131baabcc6b03b43e0cd331ae772e. 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/QM4TW1993282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0e30a452f16375f57a84b743f0072a020a78085d93b5a4bad9fe699e56ff7db. 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/QMDA71869034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x625dadbcec408b2fb93f0d5411d437b1d8c9931493fa5409819c689975bebb15. 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/QM6N21731945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3540d344929e4da6bb869976a947e7003d05d8fbc554d871054262e036ed8420. 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/TCAGK2251631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf101a96ecf61f45d46891b475ac7613cbccc998bf6dbd7ecdd3301f11a596e47. 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/QMDA61800147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33caa6cdd98760057f8d74b37504395cb5b742bd18adfdda1d7321deb5b79c71. 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/USA2P1902052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f5a095d7634244cd6da4a1a987ec7f9e834e9de292bf4c2dfda2fe16a7c1817. 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/QM4TX1903893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c063282dcd341ef9c7903fec04436156ce481512983135ba9d98e5f231a9ea0. 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/US7VG1874009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93d1013bdf85666d33dcd8c7d81024e5aab4852aeaa4638d3483e82f2b16955f. 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/QZJM51900010.