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 0x75ee117e6cb505da13cb2ee49ddfe274cb30e5f07a20546b5873379634a6d6a8. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c9243d37-f18e-4cfa-990b-6fc73b4e71bf.json and https://artists.proofprofile.net/proofs/artist/c9243d37-f18e-4cfa-990b-6fc73b4e71bf.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 0x1991297d01c69af2dfea2d928b535580fcaba3d5eb290fe7b16266170ad82d9f. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/FR7U61400508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f732efb33fd4b90f4aea72568c066342b586a507ff8f6ad07e216fed077f71f. 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/FR7U61400510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf02124947eeceae0a94e7a6c6d8a5c96454f846fdce443eb176a51a084ecdd3. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/FR7U61400512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc53bdec222d28f2ced9205ea5a50e2541bfe71d528511c0004d85b4dc3c52dcd. 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/FR7U61400514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x156231f75d946f7d693779bf9896ebfba66cbf28f516ab8515dcd90b32f9ec7f. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/FR7U61400516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4f3714a06c9d0a5bd77dc0b71dfc6bc721e681a0cbd2bf228a241c8b79a2eda. 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/FR7U61400518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeebd2c0229636c964fbf2daadc42cd112a097ed9760d891ac8c72bdbe939920. Chain 2 (Bitcoin): anchored in block 958860 (2026-07-20T09:58:28Z), 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/FR7U61400522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a1db64b8dd5104df899ddb8b9cd9804a18b812b3e4c47b639e65092320a8283. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/FR7U61400462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x596011072cda151ce4cf1c2ceb804d36c23de348d2009723a3b3f69bdcc32525. 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/FR7U61400528.
Voie Lactée (feat. Lefa & Lord Esperanza)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ad6e4fc9720aabdab21b9fd6c5b144af37ebac0cf3ea2dfb1107687230733ba. 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/FR9W12039482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7e318020d4b06d7e0398f868ce65f9c28fcc3c7a2a3e186483086ee1dcfdca7. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:08:16Z), 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/FR8Y72100211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03b995e34af52a9050e5dd67942fe3c5436e1c79a3458a1dc366f7fb8b782281. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/FR8Y72100209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec5e7c91975abcd86900cf627918e8bed81b012bf4c45a390fb2714f1e3c13d9. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T23:22:19Z), 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/FR8Y72200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0118888300143c80fb134fa749b2e35887b06dcb1cea2d7851095930bab10f96. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZHN62305351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb5c1ed5a1d5e6d91d686704e5b68489db698405ef25657bcb95a77dda120408. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:54:01Z), 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/DGA0H2487233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbf9005e2b57c307c5f21880554c0bbf2ff78a4e1e3525e100f54fa358ff60d0. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/FRX202012132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe47679e4512bdcbe0926f5ea6d78e7eee251d66e18e54775c4d5a845d633f392. 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/FR7U61200268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e98d7c5d9390c3dba6f1c6888bf50aae65064a576d1768c162b74afdd740f44. 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/FR7U61200274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6822e7d90e134bfe1347a64d218ae9d3f4725e7069c876e00aca26237e1cce20. 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/FR7U61200128.