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 0x465ac196837cb970a62ee1c0a5aec3daa13a9b4e57b19342f0711de2f1ef216d. 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/74629b84-6f52-44b4-bcfc-6684659886a2.json and https://artists.proofprofile.net/proofs/artist/74629b84-6f52-44b4-bcfc-6684659886a2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Y Si Fuera Usted (Canción Original para la Película Salvador)
Eles Transportan a Morte (Banda Sonora Original)
Salvador (Original Motion Picture Soundtrack)
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 0x02e2ec476d213476eb0242c1e663fc8bb67e454734de783c02cb288f2d9c5615. 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/UKXN22375737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1becd0b8023990832dae2fa69a6f3f7850002d07c7da4a40405a0251bf78e5db. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/UKXN22375740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e12723b4aefb30dd45d8c73ad9276320f4df5e1a82a0ea27256065c840325b1. 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/UKXN22375742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x688bf415a74aef0e5a9a4f61923f851fc5c12bc3f572191dbd90192ba8e21a38. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/UKXN22375736.
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 0x3b5c58c29ce3bf2f905c4082a558cf828c2ab9c89a87566984ecad1c1a8091d1. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/UKXN22375738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x941008de24047466b32d269021606f0aee9b3f6ab456a990a8def5c0b0c8ccf9. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/UKXN22375739.
The End Suite (Inspirada en la Película Siete Cabezas)
Cien años de soledad (Banda sonora de la serie de Netflix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17d90e0257f7348139e349f9e60e5e7ccf19ef517dc53045073ed6186d9bb614. 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/QZ8BZ2411828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cdabbea3824157ea4b1616a8450993144815f6a86cabfee7dc88a8a9c0e04a5. 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/QZ8BZ2411830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb855f57a73269b7feac5ac59d0e3eafe24ce0cbfeaf63dccbb7a4c4876d9a07. 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/QZ8BZ2411834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cfedcc821779b60b33c56a7442e416f68969a5671f0c5b11bd48eb57d29419a. 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/QZ8BZ2411836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc6f30cc1b8767cfd40b63040a4cda4242e1d5c0452b55e84bbbca17b1ee7866. 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/QZ8BZ2411839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0b379e9724bb273d2e2bddd3730e94a46ad3eed97ff59ca00accac6a172073d. 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/QZ8BZ2411840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebef85c633ccaadf5a1dde0ed6b168684b5631af09ee8ed1820ff82383b3e362. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZ8BZ2411843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa148871e598b7c978d07103e1fd3b4b9547309ef287bfe7835f8fc7f42d41939. 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/QZ8BZ2411844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10eb109e90d85097c536c467db4dc0d992870fda2cc82b49e855fe80d6780a3f. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/QZ8BZ2411845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10bc68806268f3f77f72fd938b873b6f4b7a26851e8c4a7e8862fd7c8759b798. 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/QZ8BZ2411847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21957db944963b0296e28e4f8fb4b23712cfc7e32bb1baee826e82a86ef6d261. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/QZ8BZ2411849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b1712d4a3850cdb3e46e11cc7635e17c349ff402bde8990e6d9f9299625d86f. 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/QZ8BZ2411851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x956deb6dca7b85a52d339d86c4afe4e7582c5d2e7fd2eae1cafffcf89c8df639. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:23:57Z), 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/QZ8BZ2411855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c6bf505e21fd7e5ea22cf3fe28319396303b42207539d9b1b115d125828fff7. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:50:25Z), 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/QZ8BZ2411856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x682afde2bda1e8f3c4fbfa699460a58f389a6956c99c7477bba118403fd6ec89. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZ8BZ2411857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x495f08fe51673d501a4771192753f01b3ce7c6d3965e2dd0d0c06caf69021248. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QZ8BZ2411858.