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 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 0x5a8e91387bcf9141fd2e4cd3ea8e24993b5e3f871ccd6217b5c6f5319582f97f. 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/de04f53f-48b8-4e4e-bb54-4166c3ca1ac6.json and https://artists.proofprofile.net/proofs/artist/de04f53f-48b8-4e4e-bb54-4166c3ca1ac6.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 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 0x223614cddb09a5cf5bb1b138a1ecfaa38782ec674debee82a790e8f861cfba9e. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZFYZ2298710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd84737045c6ca88b0ec699c18421e507b2995d285ea76426b0ba279d5b098aed. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/QZTAW2298388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b5c012b546ddf4b8427afd04d36a247317e078b0a62eac8578fc166155cbfcd. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/QZHN72308592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd97dd83e0ccc7804c25c4bde0305107ad85dd92746fea7c879b297f4b0371b9. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/QZTAY2364331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f94f45e053ba6360c543c2dbdb033ea75d0662d924391da0a5a82ca63a93bf0. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/QZWFE2413673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc8ed702b02a8981cecd1e5d602a218bb71d185ddf6efa39d285d43f1d2753ed. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/QZWFF2484521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6829fc421a23ec2b8b7f0400398a3d732a9bb4271286797fcddabd33cfeb995. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/QZWFF2484522.
Si quieres te acompaño en el Camino - En vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd461ac3cbd4be91ef7b68381ce318e50f6e03ff91ff376f38c4af2b97f574471. Chain 2 (Bitcoin): anchored in block 958963 (2026-07-21T04:02:02Z), 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/QZWFF2484528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffc028144765671a82c5f71122e436de1269ed13fd81dc4fab1127bed9226279. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/QZWFF2484531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fe12392dfd08203844e46a718ba660462367e36461bcaf60e8b5d1165d72f60. 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/QZWFF2484535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98cc339d7be9c0053daadc92931537b6f922e2d6e158d550a2e93496813c82fb. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZWFE2558680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17175d32920757c1cc59f961699f7984c7b394772e29cd9ddf846b577a0c48bb. 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/QZWFK2595710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98cc339d7be9c0053daadc92931537b6f922e2d6e158d550a2e93496813c82fb. 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/QZWFE2558680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3627dd14a638136bc5fbee995843e0966cb88fa14d1e694e2738b4637ccd8b60. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/QZWFE2558679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x651cb6959e39905a8082cd0eb6e06c041d1d5a3646016761293d69b4802f255e. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZWFK2595713.