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 0x317b5edc3e7ac6325cbb417cfd1ff35cf96127d6168eda6841bbd4217bed55d7. 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/4a3ba4b9-7cf3-4137-85c2-386f6a71aa11.json and https://artists.proofprofile.net/proofs/artist/4a3ba4b9-7cf3-4137-85c2-386f6a71aa11.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 0x63cec64470eb91c6b983ee757ba186cdeb9237814caab8e28067751faeec574c. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/USQY51798550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb65d3c910d88299399ccf25041c5fd3a1ea2863b423efd402a3ec2d8cf2820db. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T07:35:35Z), 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/USA2P1807246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0456bf40ae614d1ef3ded9d246b55403e01fd7beca9d6555dc64fd473a40cc6. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/USA2P1823438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x983aa124ca20c2ecca9266e76e06083bfebf920be240d001af5e051092a1f66d. Chain 2 (Bitcoin): anchored in block 956748 (2026-07-05T05:55:59Z), 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/QZHN81949971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99648aa788308e71202f5e55e3b4f8a3a9237bbfc9f8cb2335d5748767901cc4. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZNWT2168813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3bc08e8e01b45dc111dc463103ab75d7201b87bc29b6c57533025c54d556c19. 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/QZ5FN2200547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc15912ee461ac2d43c99ae9f03dbe3a6e5f94949b47f1e4fdf98584dd2b0aa03. 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/QZKDT2200604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94cdda7b466d1d1510bba6f84e819c45a9fc9d3112c0fcca1b7e62c5b31c85d0. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:21:58Z), 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/QZQAY2474036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x730f8f8959bf6741298cb0bfe102a113215fa3882f35cf089b6b0b2f4c6d099a. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZQAY2413153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd28e4bfb33917eb069b81c6eaa194889e0f00fee33810bf890d69e17cc04035c. 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/QZWDE2432817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ad6a492ad43b874e1facf97b775195ab35c655f13058bf1054b1bb886a066d5. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:45:25Z), 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/QZQAY2573886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e14645aac800b8c02acac654fb1af56be864d743c6bf2ec3687e604d58b57f4. 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/NL8RL2515472.
Live Session #1 (MAMAZOTA, E'TE COCO, RECOQUEO, PERRITA) [En Vivo]
LIVE SESSION #1 (MAMAZOTA, E'TE COCO, RECOQUEO, PERRITA) EN VIVO [En vivo]
LIVE SESSION #1 (MAMAZOTA, E'TE COCO, RECOQUEO, PERRITA) [En Vivo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x031f246871aebf528d2bfb722fa92fcf10977ccf7a83f3d3fed2749cc3598f0f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/NL8RL2525342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb12972cb69a8d3d3cdf36469585a8ca59cc88b5d0fbc1f0b1b52ebb02131012d. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZWDW2572141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x301ef72b993ce6284635e968b696a87d63e140aece7c18ca6d6ba6b7ff21f6ea. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/QZKDT2400067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12942bb3a189b97763902859af8c0df3fd016f95193511b8ede1a9ac075d8d39. 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/QZNJY2429102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68862b6bfd605e3a894ad7aec5e4e2029999af546198e75356dacae69017b90d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZMZ92524061.