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 0x9e40632917c956fcafbb14226c398596b27963065aecf92227a156f13a3d1bb9. 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/c73e2d7a-096f-4765-8866-65eb07d41c13.json and https://artists.proofprofile.net/proofs/artist/c73e2d7a-096f-4765-8866-65eb07d41c13.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 0x1df50d46014ec34ecf4ce71c4a391678465523e6fa435fc175d7aa13875a8e6f. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZNJW2001658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6867757a97211a3512ff4878af46bdc342501c0264c9d556c4e34b39c648fb7d. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T13:49:30Z), 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/QZHZ42123009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3bfefe7187b620e869e357b941bd72b03dafa844a8fd90abe332db85646ffc6. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZHZ42123011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb841cbd6c89c864a2129750e7f484632ba2efd4dcf7204b1e16d4778275eaf. 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/QZMZ92181374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b6bf9908cbfd1ae5a0971191f36b68bb877a835abeb2b273a2193cfee0138bf. 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/QZMZ92184430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f269450603eeb23d1baed5c61a48f3ed475ad9608a4f35781200e73d0fec996. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:49:19Z), 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/QZNJW2171194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd3fb0499f0b9d6c77975982d5cb1f1f4f589b1584a2c5101383591d72dcc9e5. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/QZN882258506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1df50d46014ec34ecf4ce71c4a391678465523e6fa435fc175d7aa13875a8e6f. 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/QZNJW2001658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51e33627db3690996fba1edda16001e66c397c9dcf25028aa89cd7b48a4e8681. 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/QZNJV2066911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa023abbf665b8e2e4467329b107566643febb29dba979e14e257683471c8f8c. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZWDW2229961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb674bf3c3a666f42dd504550d1cb5457a6b700b9005b68fd826697dcad45361a. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZN882307748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80c57b113d21c43d327fec639a30eca76502934a42a3bae8598804b574efac36. 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/QZNJV2316229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd311df71d6017899a3ba033bc5a6ed8bea531591660712dc15edb16b4cdf976. 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/QZNJX2382680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0745e9b7eb81fd214cd46e8f7654c7684c5b5cca2e8d43e6377ed0d9b86724d5. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QZTPX2321862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfec4ff50cee25657468e65b3ceb3090f71f3b206760b7ecae1e2d0619fc793c8. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), 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/QZTPX2374954.
Y Ahora Como Van Hacer Para Picar La Torta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc504f12f0ff2472220d9e8bae9735a2041bc164d280a71b75b89dbd876e3fbb0. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/AUMEV2456699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ea81ebc826414ec54211b1df194c5640c9907b15ee672c2ebc6e9dea110746c. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/AUGBT2463637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9084f8b0d8d4449431de4e78d8ffdce9a1682e4ba2b6cebe8735703442821c7. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/AUGBT2489191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93c6dd183be97dfc05473a32a004f1180f6c258a39017b6d96e94ed6cfe35efa. 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/AUQ9D2403533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde0ac5e833d6f7a1da8b8476e626e8cb2dfa00f8646707c283aa957691ca4c8c. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:15:44Z), 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/AUMEV2503323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fa2a2566be7cef410b02e097e02f3568b019fb8baff3569d541f2a5e5d243f8. 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/AUMEV2509504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb517c22f47044425c653b349b47dc6c47ea0bc6b569ce8a87fd9f961e44fe47c. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/AUMEV2548510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebb866a4ebd831c178696e848d7cb57d0b1c174d56f61b3c20bcf615bc27a31f. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QZG2X2500627.