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 0x6110aa0fee39ab36910de0f2d0cecdb2ea5ff33e0aa9b8024f8761a75c3ec793. 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/3a1c826a-a572-4ab1-b53c-9ec57df4a6f9.json and https://artists.proofprofile.net/proofs/artist/3a1c826a-a572-4ab1-b53c-9ec57df4a6f9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Yo Tengo un Dios / Con los Pasos Cambiados
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 0xf0093eb4b9a7104e664574355c4247951496b223a64c218bc76d70a57e1b4c20. 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/ES6671201304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20a988e25883b0a967ed85a1d65b04a06a2f747291718c018949cd3975eaec4f. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T03:11:05Z), 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/QMFMG1392415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f41ff6971b2a86ef3741632609fddeef51752e315da6973aec3100c71804a92. 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/ES6671602845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa585e4c3879cff3c1d1922069771cb28ee22bbbe2386d7ed0c9c3c5022c34879. 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/ES6671602853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x511aca7b108d8c18feebba53624c630cd4ae72aa1a35f532b2d83f3c3714afb7. 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/ES6671602855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fe18112d5b9373816c6b243cd74fb1b2dcc4d0d365948020efa658fc799cb28. 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/ES04D1600367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63c9b102b038b37356b852fc2bb933cfdef27dbd60733806f45e9224406b3f0b. 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/ES6670300041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1b516ae0e3899bd9b32a1ead1102fc56ef2d4bdaa87f937ce45f13cba0a82a0. 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/ES6670203057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ac6bedb35b52cd0480d9e24348cdd01e4ab08dd56c5b33c5ccb3b8eb92b9f44. 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/ES6670203040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x132c61e080a078e6ba19d7c3fb8523229603ff90f7f3848cce0f3e5a1b15f3fe. Chain 2 (Bitcoin): anchored in block 957653 (2026-07-12T04:35:02Z), 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/ES6679303112.
Rumbas, Sevillanas, Canciones, Fandangos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d163453a3dd38594ad439d77b145a63cd9063e9164c99f45bcface714211b30. Chain 2 (Bitcoin): anchored in block 957644 (2026-07-12T03:18:52Z), 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/ES6671803456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79ae2f4ebe4d3a6b347f506a11d5c310a1e34b8cfea900063f9372ce315c4e4a. 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/ES6672504924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x977b455b1db98f4c52417786d6185dca04380e89f1bfc4f5302b419b7dcbc889. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QM6P41700895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x286f0966a4ad9dec7f2b5503797393e8fd5230d8b5a07b151369764371404a5d. 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/ES04D1600294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba4179b79b956b61cb7f668002b9c08470a969bef909fe2628346a5371a4559f. 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/ES04D1600297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdece6a9aaeb8352d1193291c7c94b9bda793475c148a7d808b51d22c0b5edbca. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ES04D1600303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1bd4c70189c82e8a9d121935f5d252c536a0a5aa7f2da45ed1a0d18f3cc0956. 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/ES04D1600308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x940f1ff9654538417b8b351181796713143517e339a2abc6d66052dd6a35360c. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/QMFMG1379044.
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
Llévatela. Guitar Manolo Franco (Sevillana)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf45b982492a6587d0a88646d1568f1a2c74f3373cb65e6288c609057b5c2fc2b. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/ES6679900537.