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 0x893aea3fb9f09b7e8c017f7e12a7528b3447f3604c332351c9c7c9edb602eff0. 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/3dbbdd50-b373-444b-b524-939fcd17d783.json and https://artists.proofprofile.net/proofs/artist/3dbbdd50-b373-444b-b524-939fcd17d783.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 0x636294119ebecc9680d3cf9955330f368e9b9c861533a94e58a56c42279523fa. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/ES71G2244733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x636294119ebecc9680d3cf9955330f368e9b9c861533a94e58a56c42279523fa. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:09:17Z), 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/ES71G2244733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x387758d083bbe85936f667212449769641f712c55e33617b78bc3411a1be9deb. 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/ES64E2300025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x432b6ac5e484262533cb1fe15e5ba29ec0c89ade58ce8fdc29c21f1f4bd39081. 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/ES64E2301807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf12a9f04bd8ef04ec6ccd331cdd14e12896c5937617cc0b27b5188407acb94c. 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/ES64E2302650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30776462a3893c1d072e80619d719d4e896c055d75dbab217b1b715667d2a63d. 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/ES71G2318848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bf5f81af1a18594adaf0e3d494ad194903894e48c2a2570dd0caa7fd4cf5d0f. 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/ES71G2510036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9391537d0045e318e90e28cea6990a6c6d6bfac37a7d1e7408a826262eec1a6b. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QMFME2501809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c7a17fc2db75f6171ac16d835e0c6cf033b2744936da6814c0c4627b6ec2454. 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/QM6P42562972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15d6908f4baf4936e83db9ab8f072d4e7799ac4df4885c21e6d5833cb2a648e8. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/QMFME2501788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf43b8a61e5b2376555dc1983f2afc349df043b18c865b364ab3198f512fa8997. 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/QMBZ92588717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x387758d083bbe85936f667212449769641f712c55e33617b78bc3411a1be9deb. 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/ES64E2300025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd168f7604e915f0349dd172f526edf275fd285cbd2c92fe6729c2e235d5fbcb6. 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/ES71G2430383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf12a9f04bd8ef04ec6ccd331cdd14e12896c5937617cc0b27b5188407acb94c. 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/ES64E2302650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab76c78a910bb76187b7097ac12a9fdf1ff9fce99a45ffba416a1a006a833e5f. 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/ES64E2304768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x432b6ac5e484262533cb1fe15e5ba29ec0c89ade58ce8fdc29c21f1f4bd39081. 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/ES64E2301807.
Sigue la luz (feat. Carlos Escobedo - Sober)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xece1a1b436aed845c4d542a9f5409bcbf5e9309c90a44a835d48d6f7458576d0. 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/ES5151302101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7a8a43c8ea230487ec5ca964bf5fc3b279513df5bad962b90939f187dfabde9. 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/ES5150902016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x503f4495b2f154917e6d041ae8f64a6fdbdca73b040b2d2c2e65a3a99c4caea7. 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/QZTVM2413224.