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 0x805f04d90811c6070edf32eb385e2a426ec2a9cc3d5903ac2f7344f929fbe8ee. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9149f570-d2f6-47bc-b2f3-0d41906e0395.json and https://artists.proofprofile.net/proofs/artist/9149f570-d2f6-47bc-b2f3-0d41906e0395.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Cortate Los Dedos (Prod. Santi Portillo)
Cortate Los Dedos - Prod. Santi Portillo
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 0x2177c69ff7fdef3d254ae0d0640f200d0429a2d739722cae1d1e948443a3a698. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/US3DF2249275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7370016a4a4438553d42829a493b8822dc418b33bf5915fe48b81ca92245ed7. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QM3DF2126209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf082b1a262d43a29b216af324aafb9d7763b97fc7b8c3fcf4e0486ebafd77231. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/US3DF2173654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9eab119960df9d74c4ec5f730cc0174505e29c2b9ade24b7a370f7110e07aab. 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/ARGWA2100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7351774afd66d908744efa8dbdc06da875d5fad93f4458df74d2b124d72b115. 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/US3DF2078574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9fa80b0dfd48ae0391f0ca8bcd9b891d55780a3289c505453a33c0c1ceab0a6. 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/ARGWA2000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf19e6062abef59dde53d3da3008e34b38b8645353bbd1bbb1047d4f7b7ded4c. 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/ARGWA2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa309835be7dd2e2e245b59d82899b4b919cd0eb77b9944b353434df5da50af76. 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/QM7281999130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe75694f0cde245d09047ed8062ec57cabaa72dc165c20f67bb1a85e6fca65b54. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QM6N21900682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49968835dd93cfce039e0cd7911e5fbd4500653d8cf6fd756112c764d19c8787. 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/QM4TX1916662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c5146229eb4045cb28108fcf5ed354961d1fcc0b3db124aad1565673769e674. 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/QM4TW1907354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea6cfb1d0964126ecfd1f12b243a5873d28d72a3ed469978e093547138c4e1d5. 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/QM4TW1890482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46fabcc0f8f378f1f93f916b5a59283271f598dba216e864b4ec7909e85da03e. 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/QM4TW1861986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d3edad1bebb8e4afe8390ca84b4156cee23bbcca0bdc2e55b8959139736b90c. 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/QMDA71868114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd610be49671f3d6a0e753cd8e281eeeb092afa864d458eb1a1327de0199cc1bc. 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/QMBZ91764380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6759e1e10e348c58e46a62c2780d9cbc9a847ce897bd0bd70b5ffa993d2cfa8e. 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/QM7281787457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f0c90b13ca497cec59dd83ef98b21bb263e5ba6e88158da42bbc6df48b3e9ab. 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/QM7281778619.