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 0x36d3662430acca3f5495e9e287e4e77fc36d70f5647c98ec0ae7ee4b3b7500af. Chain 2 (Bitcoin): anchored in block 953616 (2026-06-14T08:58:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/19db3f82-2427-41f0-ad43-401e0d3a2a7a.json and https://artists.proofprofile.net/proofs/artist/19db3f82-2427-41f0-ad43-401e0d3a2a7a.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 0xc8b1a08d556a442aa7b3460d1d468bfe909c526b3b00c2b6d14a64a861394467. 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/QZFYY1970784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5be108f09d2c03ab0cd4e04bdc800b41e775204f2619e4393f61800a9b3793d0. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:37:55Z), 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/QZFYY1970786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf940eec121806fb1997b06e04f1b03cc542aef921db9934002256f0741f29520. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZFYY1970787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe69ad0b4e6f9e54c7c7c42dbaf4e884855dfb4dacb6f4636b9056ceefc0a82e3. 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/QZFYY1970788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61fa5d3ec60bed912200175ceb05df048aa6e349eec9d8d21e91262fdeb3ee57. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/QZHN61922120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bcdf03979815d3eb8054b988c355c019bf08b8ca7b8ad94684e1077cea36d88. 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/QZHN61922128.
Mixtape #01 - Momentos De Adoración En Vivo (En vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c24ebb995bddd5acf3e70fabd9c5b62977644b7b2a099c9931302d4ff54465a. 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/QZHN92475223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x168ded3fae230838a55470fb32220bdc724b0eb76c209d1e9084a516d4f0ae1d. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/QZHN92475225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f213197617164bb4011a8c7f44cab6fe51cc8c900b7b8d1e90a461396c68031. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/QZHN92475227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x185efc4cc217de2217c0b86712212aaef7004b82e14ac478fe90ec72180a9b7c. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/QZHN92475231.
Mixtape #02 Momentos De Adoración En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x707ea688a8170f89a6f2b013f1ad17b2561747e101a17b15cc994f843f83c903. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZTAU2560020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dc483a6994302ac6491fb5ac7425c573b9494ab90408b7ae01391fac3274acb. 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/QZTAU2560021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4d37d2b43c646cba77847c2b848c0d03e1799ab793aed0afa3a39173aa09119. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/QZTAU2560022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16b63ea19f676e4b367808c5cec3ca791c9a50d872337936b86d5dfd06af0e89. 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/QZTAU2560023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62513630dec3f8e7e5bc46a83b56d971584f5c065deea6ad7d7c7c26229ed827. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZTAU2560024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23f70a3e8666dad617562a4e00c1e2d0ffccce616601a06bc552218a8a4dfdb8. 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/QZTAU2560025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2a6de587f9f118f7122f1156830a93b169c298fd1af9521e08150ccaf2b6440. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:40:17Z), 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/QZTAU2560026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52c29a60e6e866fe79070e525d4bb61bfab90cceea29a08ae90197058b6c0f4d. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZTAU2560027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f42e7130359d1e1f5a1420ed9acf68e942379a350325bf5913b1b10399f439e. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/QZTAU2560028.
La Casa Se Llena de Gozo / Cuán Grande Es Dios
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01b92e418a21e6a152d845dcaa31714c9c1470254342faae7eb4d0e779a63cea. 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/QZTAU2560029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x178115fee7cc913d8fe67a7d3dc29ea4b40b0a77ccbc338f9840e7a05f6f689e. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZTAU2560030.