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 0xdd25105f4d6189f8f9f568a343ff1f15a6e864960ffa71142b59d88dd222177b. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2d254c9f-6167-4b96-a7b7-f4c56375164d.json and https://artists.proofprofile.net/proofs/artist/2d254c9f-6167-4b96-a7b7-f4c56375164d.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 0xcddf873a71eca0d580bb9320659606fdc55c3f5e76f6f40ef283da52e5aa6ea1. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/FR2X41680948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12e1b84e3107f3d56e6c12a23dfaa7f29bdfccb01735a18320474082580ec575. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FR2X41680955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79e1ab9fc1622fb7237444bbd3e64e09f8597126a4808e1be59b86fe5ae4e955. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/FR2X41680957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a8e54cb1920ea939b43121c6ec6b3b2b47b3e123139fa7a738f1b3c46ccbd88. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/FR2X41680962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x073e811633545ae0a06abf473569df5c938dbe3d49b8026a2ec40475189d2419. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/FR2X41680425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea6a493aefbe2a4cca60bcad0be70c2cf023dde820f57088acbb78f3a59660fd. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/FR2X41680434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa91fe70f4b7152826225ed2b91438c881aab928641fb77906e87edbcc5f3002d. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:02:30Z), 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/FR2X41680435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3acbb1bbe073185b1bca3b71ba2efbcb96d91b7cf9160a391cb9742b04bda60. 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/FR2X41682564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c0b1aa05d22586b7488ff6e843560cd64ae188e255d6d55e24d9c00cb2815ae. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/FR2X41682566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32aee733502109cb3ec942f317c4d8d7d22772671cbcd883f301a39532061f59. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/FR2X41682572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1844693bc2086d9831d42b9244239b1a0058c69c99e9908481b4603a2c0ac72d. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T20:13:58Z), 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/FR2X41680918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3df2384ce4a6abe9ad5b2d489e6f12c0c8798bc3843aca271d7abb70a8701af1. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/FR2X41680199.
Música para Hacer el Amor (En el País Más Feliz del Mundo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f40f7c59a69206d5b27c615211a3dacb1d2005bbaa84c838d0b809f933729aa. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ES71G1739594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70656b22245ba169052ce7a71b1777fe3a42aac1c0ef1109c26a941cb9936ca7. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/ES71G1739596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9677663f2e8abd213a0f384b02b2901d0ca90188ef6dc2c3719cf8157738715c. 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/ES71G1739597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde3a79f812cf4bf86e2021219d2c81d1a791fb88e33eddd236b956d43d088e0f. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:47:14Z), 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/ES71G1739609.
A PERRO VIEJO TODOS SON RESACAS 20 AÑOS DE TIENDAS Y PUNK ROCK
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bf747c607e42f5bb52297a470fbc974ea01919809e748783788ab916ed1e9b8. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/GBLFP2254176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cf16ea375457b6cc17f82969166f259409e40b306d89860b7f5eae70f242b09. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/QZFZ72269109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02cf5b25b6b8a69c3c7cdf9d80a9c1a3334ce115301bf70c4492a962aab6ee96. 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/QZFZ72269111.