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 0x4155771e84ce6b88c213ae8d1ffc65f9da932b2ecf4baf073409fc25e373b39a. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d05ecf24-717a-4536-a275-c7ee19a56069.json and https://artists.proofprofile.net/proofs/artist/d05ecf24-717a-4536-a275-c7ee19a56069.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 0xcd9482edfcb6ed8b0c694bc740c808d528c4f3dd48f5610f24ac955e32feaba5. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:16:33Z), 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/USL4Q1973875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98580dbe8b05f2ca8f6533fe391f8cc034afe5384bf08b495c96bf142268f44d. 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/USL4Q1973918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09de82e8b493d6da3b92ac39e50393a9d19c0fad55a0237a033d142ec3113a41. 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/QZFZ32569064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x629224e16536227a01cbdf9f65bad2c5a2c82db034f0149b8ac64578bbe5af92. 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/QZFZ32567139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe26a00b337097c91afce950fd78dde027e46fe1865a4a94bcbc394ab2d448410. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZFZ32565653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c837d3d5187759fdd0fb4bb2cc7cce7bbd160207259c2536df673d49486b276. 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/QZFZ32567198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x629224e16536227a01cbdf9f65bad2c5a2c82db034f0149b8ac64578bbe5af92. 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/QZFZ32567139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x836eb5f5b218da57a43b9e6d79b1ad4fe2b179bb0a43c850fd8dd0bfcd7aac21. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZK6F2516573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba90a508ca636231f323517ec267186b0a97019fe7a41cc5f5cc66a20b702cd8. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:09:12Z), 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/QZK6F2515001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1267fda45e72ca124e684bdbfd3ce3393cfd0ca9e94d4d6386408db2fe953fdc. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZK6F2514972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74709ee650de3849927bfbcc818b48ab36075c469fddac5b20b9900c652ca93b. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T05:32:03Z), 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/QZMEP2509527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf5b53d84d9349cdba3545a11d79527076b489b67671f6f5a6230e448b147703. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/QZMEP2509523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d96d2eec85ddfac925d10331222844bcc343a7615d27205ab7e7c81427bce0. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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/QZMEP2509525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64c9ce554f01b261afa7877910b89ce859bf94a31bcbd0685eea34cb900d8619. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZTB92507781.
Confusion Reggaeton Romantico (Instrumental)
Confusion Reggaeton Romantico - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ad3564e7d29ab112cdf6e58804484132c3b72b655c934796a390478b60e7d79. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/QZTB92507785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2272bc0a14f1b1dd6d7a4611734d46787c0ebc8144e58b6345b5d9b11d4546f7. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T06:35:47Z), 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/QZWFP2589762.