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 0x4825756ff0ddbce31d277b4e221efab5929e3bb6a1942e4a03ae30e92a91287a. 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/4d2f28ef-f4dd-4180-b373-361e30f7e742.json and https://artists.proofprofile.net/proofs/artist/4d2f28ef-f4dd-4180-b373-361e30f7e742.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 0x8af3dab2ce202afcf0c208f2c6feae778c397b4a470cbd877b1215f4848e1526. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/USCGJ1818244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd99268d301912cf336a9f71e80e5d88b12d4f047ab0cc5c34fdaedf9cef5b209. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USCGJ1818245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49ea82a15c1e86dc2a5697532e7ee23cc27239b6968dd8ad09d7f81615653dd6. 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/USCGJ1818246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bebed62d99e7102c291710ff2f81309c66e473d258bc72db5898f96774cb61d. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/USCGJ1818247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x834c099d3c8ba303a6d51c86f8ec1072e1aaed419e31fe2975dc3c6f5e7380af. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:03:23Z), 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/USCGJ1818248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x354cbdedcc1e5edc7b5449710e764358e680988a0e2e86da528b3c5e5e5d2cf6. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:12:28Z), 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/USHM91850089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09a961eb09cb55eda2eaae98b276fc9cb2da17d3e0220605914e17d1e33fe6ca. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/USDY41969567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fe0d76d3b4af8a585cbaa21b127c3c01b08ec32946a0520545373a8c36b20c9. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USCGJ2089606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a5edb7b2b386cc964bed095da3a1cf4154e949a4eae1b43c1f485cdc40a6058. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/USHM22382034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ed164a07968b501d04b82b0924ece748bb8762ba8b0730c2775dd6b668a75cc. 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/USHM22382038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ec1e65aa9f2a9ec037077c0f0c9789d20b5eb90dcc217b61626f9c19d05732a. Chain 2 (Bitcoin): anchored in block 958369 (2026-07-17T08:01:57Z), 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/USHM22382040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb320a8d02ad99d12a2fce8b490422edbf6b8933af2c90807a9348aca11429b2. 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/USHM22382041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x082d8678b02d9436637bb2d1b91b9efcb8dddb4c59d0c7287e83ee23169f43be. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USHM22382043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8deb75a02643fd97c130687e788bbf375aa31cdaec98d1bbb0ff021d322ee984. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USHM22382044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4446b0e3deca664f89519b593f70369aa7710774a788c0b140ded074086b53d. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:07:32Z), 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/USHM22382045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb104ba63260edd660a802290903208a0d774816f5fbca486d87cb7bc973b388c. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/USHM22382046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc77053bde218499574fd73cd0753706c30e35d46c48a7892aa9475a626cd5e44. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USHM22382047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c2c3a04b524a6344ba88885469ef3e1da99a28690a8b60febdc162bdf26e744. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USL4R2363335.
Tumba Las Mesas | Parte 2 - [El Celo Por Tu Casa] (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffb125400250864dd73fdbcd183b4e1b9a9d37d31a2ee1e312f09c2918704454. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:59:41Z), 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/USX9P2505537.