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 0xf7f9686463fbfcf5481af3b555b3c82f2defbac89026a66d1aa56936ea904834. 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/cf4f7409-4126-4d10-b13c-53f822c88238.json and https://artists.proofprofile.net/proofs/artist/cf4f7409-4126-4d10-b13c-53f822c88238.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 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 0xe754b9f44a1d4be3de08be4a97def5537a03e74860edb1b9d10dda62cdd29dd8. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/CA5KR2067066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefda803a6c9003ff4e04959a0054818aff50320f9ef43cc255a55fc5d2e7e80f. Chain 2 (Bitcoin): anchored in block 958378 (2026-07-17T06:45:39Z), 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/FR59R2270643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b44d9a4c769b350304fe4ef684e5af5196db3e2f85b41cb02c60e41402db50b. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/DEBY72202153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x215b689eb1e172ac638bde6b5947f087f3a780eb33b45e275192e657b930f99c. 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/NLMT42401436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6d30c45f1b3575aefd62f90f85d98b7dfccdb2d976587078bcc1abf054f3942. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/NLF541100386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x382ab021815e1b244b3f64d9ee78d8ee9a765359d6fc6de451a370cc4f386f34. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/NLF541200408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8c67fc8223c3f4a7ddfc5559190c88fad9ad9574a942b1197bd9d9057379c6b. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/NLMT42401437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27afd0d3e27c3a6e03c7334bb3c2ea978c14e252edcc1224f3ff6316d89510b5. Chain 2 (Bitcoin): anchored in block 960352 (2026-07-31T05:48:30Z), 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/NLMT42401438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83285d1a71881bc843023fb2e36c087221ac386ff016d34cc791aff8300b14ca. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/NLMT42401431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb76bc27857a2ddf56b8dbd2a858b285444f5c913516db1df04c6ed9ad24f2506. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/NLMT42401432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12dbef8aa66b5bd908b4540fe9cc20a08997a43824a2caa1c705dcf6946ed8c9. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/GBKQU2460126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30c50add7cabd2a0e0692d305aa931688a85af5d403682c3ec53f1c5495e4da8. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/GBKQU2460127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd002a207ba8f4d43ae7c5f1e6594fb376adba837c16c2e2e4d97a803d0bed895. Chain 2 (Bitcoin): anchored in block 959034 (2026-07-21T16:34:25Z), 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/ITLCJ2100719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefda803a6c9003ff4e04959a0054818aff50320f9ef43cc255a55fc5d2e7e80f. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/FR59R2270643.
Demasiado Pa Ti - Sebastian Rivero Afro Sunset Mix
Demasiado Pa Ti (Sebastian Rivero Afro Sunset Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedac88934051c76f841da4f91a1d4940a532db0ac9884698b7f4a49c6e9e0690. 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/QM6N22411380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9721dceeda1c371ebf93a4ead3ccf3fe83117eea7880839a1324d1f2f4402f67. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/CA5KR2438281.
Buddha Bar Summer Vibes (by Ravin & Charles Schillings)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc8e28b9cc9ec7f48c57e4c6a8da7eea3db420530e049c772a2d16e993f2b8d4. 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/GBKQU2202846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e532fded83dac93721b721fe1e1e263992e79f66c137c4b308f92485121ac2c. 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/DGA062289726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedb512709e19ccb292d331597b7eebc74667b396dadd2df657abd6d292678c55. 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/GBLV62314452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d327fc6044a2a36580a65ef831de9affda4bb83b8202a3be231e142ac55edb0. 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/CA5KR2145933.