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 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 0xb91af3ed99d232cebafefceefae1c92fe74ed261ace01b3de673fd29c5474d6a. 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/21ca8303-21a7-4ae3-a559-786434b5eaa1.json and https://artists.proofprofile.net/proofs/artist/21ca8303-21a7-4ae3-a559-786434b5eaa1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Humo en la Trampa (feat. Yoga Fire, Cozy Cuz, Fntxy & Dee)
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 0x4c5ee12a14cc9c68e7b789aa8a1eaaf6526c99cbdb9d0210567d01df09b6141f. 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/QZGLS1944375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18b89b5ab94ce44876094d230d076046a370cd3641b8bc7ba4ff04af571c5de5. 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/QZGLS1944376.
Modo Avión (feat. Pistola Bang, Fntxy, Dee & Dezzy Hollow)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41cceabfe1a9bb96260fafa20af3405d4a651c2ec701ad7f52eb9024829e2db8. 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/QZGLS1944377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea337202ffad7ac060da0c9b20c2a8a46b1240eed30da85d57b50da47bdf4da4. 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/QZGLS1944378.
Codeina y Mary (feat. Fntxy & Yoga Fire)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44196d046a2865607d4f73734be26efd58d52c795e7b9c90df24562427b6c626. 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/QZGLS1944379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfadb904408fbb1d904a1ff69856e30585be30d59967b9747153a426ab8d2789b. 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/QZGLS1944380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x671bb82bad8f2ad1d8ea539bd059f56b8dcf21b49d60031d3d3160867f4c9ae6. 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/QZGLS1944381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06d75a35605fbdcb1347e6d102a240e50ed383c5181f398c5c6d4e49c41a2630. 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/QZGLS1944382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54e4782c407bb66f2815b546231d7379ab6b445c13a366b512ed150dbea31af1. 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/QZGLS1944383.
Mission (feat. Soda Boy, Fntxy, Cozy Cuz & Yoga Fire)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcd3773d267cee9ebb6c03f96eeb7216b1fa44a68a90dd58722d63a4187906d0. 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/QZGLS1944384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bf854c7f46489e0f817731f90d5123bbc315f8b7220b86ed30e12e2456901f3. 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/QZGLS1944385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x441690cb0f0a2bc3fefb71a09d54e82b84c1860026795aef1eb58c2ff02df47d. 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/QZW9K2245946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ef5f59a71cff942823a67d1824eb11d81d20e1fad5e308e5474e12f66640d8d. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZNJY2241011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x100cfbea18bdd5137a1698c9e384e0993ab84b045c584314ac9642dc1cc31004. 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/QZHZ62023517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3a024f473dbe40daab6a8a5a2edc8a5574a74bece6bc204eeab5b34fe25204a. 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/QZGLS2015515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9129ceb5836c61029fe17cf28cd135fcc46d6427f549b57e2d8dffe5cd64a6c0. 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/USHM21931266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x707edd663414250eb13658adda5032c499c7c05ede8df02decaa87666479236c. 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/QZGLS2029427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd9c553db920ff322ac9c4499229918ff6d3a73c7d5cd29e4ad0552363ef5d5f. 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/QZGLS2029428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad984c563b0e358c8fceadf7b794857b934960073f79668c99e344af78a175f0. 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/QZGLS2029429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcba244a3a5e56e9d9c5ec26cdbcf4290ec4a1488baa73cf6a276cadc96f2b168. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZGLS2029431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcab0d5c62e02c280309396f219ddaf1530effedab7baf355111dbef27a23dddd. 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/QZGLS2029433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe41951cd091f8a7567aab3f1d0ddc2f57e216c07d06dc71e1b22bae68255b4a2. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:32:34Z), 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/QZGLS2029435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3bc1cb9a626bb4915bff72ac248265095ad928ddc8b96b4c20a03eeb0611a98. 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/US7VG2591099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x348f996d07aa710bbf7ce4b1f2956a72bf59c7994a07050752f4fc844d35d8bf. 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/QZTPX2386293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba214c7601b580961eb4f3ebeac4cd5d75d488e8dac3d801bd494462273f10ce. 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/QZGLM2130163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c70fa0172daff0f8e7d005c1756a9d3c991900f415eaf07eaa08d1bd85f03d7. 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/QZGLS2093835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaabea7c8b85de28d424018c01191d1f3e914b1098acea94610158c9301f475a2. 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/QZGLS2056071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea9294bf1719666b32e3b6d63f1e9e775b7e29b7e2fce031bc1d8a1102a339c2. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/TCADD1748869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41cceabfe1a9bb96260fafa20af3405d4a651c2ec701ad7f52eb9024829e2db8. 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/QZGLS1944377.