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 0x682d38523af3877fe873b629a4ce2847be9618c2d6008b6bb1de11e7fe1782de. 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/411b6f80-3bb8-4b26-a3fa-8407ba32b325.json and https://artists.proofprofile.net/proofs/artist/411b6f80-3bb8-4b26-a3fa-8407ba32b325.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 0x1f4d6a40ed01ab94f6ac75b1000cf5078c32efe2824487d4e65d7f85a53601a2. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/GRUM71102392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c59d0f531dfbc9d65d29c6268f5ca0922c90c1fbf627b7df3d9fdc37f7e6152. 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/RORED1100154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cfd0f370ad69c948951c55affcc17c3b71ff8f5c58be4ac39bd9898245bc133. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/RORED1200235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd341cea0b58bb331fc81da947f501c2b7ee173152502f6d930839446bf8625fe. 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/QZZ8A2329599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5946ccc9518fb883b39d234f8e08a77da207bc33c1c8d97cd9104e7d9666a90. 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/QZZEB2341751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fed6b5f39dbede8dd14d582ac3dfc7cda176dbdfc4c4ee586a607f810b0af5d. 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/QZZEB2363264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcc62f7c006f11b1dbbb4672bfdd4e8a4ffe91fcc36688fb8486558647e09109. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:03:52Z), 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/QZTV32448866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d4812a4c5037cb0b53485b1be31024dcff3416df07812a42e91f5441e19b1fc. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USX9P2417024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd35a368fa9dd7055c2d883e16d30492794b867b6d04050b3ec262ea7e5dff32. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:49:22Z), 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/USX9P2464210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c2a012c24b907869baad914c17634360f16086e08f20aa87fee9ceff85967bb. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/QT3TB2419686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6851a98d29f2c7a16ff63aa965e303edb06e44390e2ff9ba934daa598c2360b. 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/USCGH2542547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cbde34ac9092bab332e615affb1c177e9f5490e77fc70d5fb65043ba1e77be5. 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/USCGH2556360.
Pana La Capat (Nimeni n-O Sa Ne Opreasca)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37ba2c64136c39efeb355d4ebee1a4d6504a7ce533218a414cc66f2a0e4c987c. 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/USCGH2596506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a78c43d70e9c4605526e8bfe0a3700258c5cd04512804bb67e928499a8ea7a8. 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/USCGJ2581289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4db08ffe9a76ee4314ac5102a7d7ed6b969458038bc549616870d45d29db8d6c. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/USCGJ2599385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x369c134021e22dd0d18bcd5e920b85efc0818f615bd212b124197d6e9a08309f. 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/USHM22551422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c827f3e92130087ea010f56b221a0b1213937d085d089f21653c8df737a7f48. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:22:13Z), 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/USHM22594612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe10d20d00dbf78aa5005aea01c565bacbe29bb86e75df7193bb24435fb008715. 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/USHM82533786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf56911890751a523d3de0a69f1a3192160f0157b6686661f493619954f42cf9c. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USHM92533281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x965960f61f7b187728932aa2dcf25f52fe9c739f4f0b2f9db40d8ab0cac75046. 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/USHM92576754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dd271efe15d8fb9b35a336319be1253420a7103c349f3cb20ac4024c2294419. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:20:28Z), 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/USHM92552878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb19b79901807b24bc0d4201349adc3d2752c5c1700bc47ccedb4752f96160f2. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/USL4Q2516383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf079fd2db7ca205ac7e526bbcd09bc9ea555eee35b9ed49c3b894190f5bdf32. 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/USL4Q2571910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x457938317b9d3fe2b17a4c32186dc066998fe9d146806e11486ae71cb90252fd. 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/USL4Q2594401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcae3e45d0aa1f6a0e7428b1d31440c81e70c4a64636015c002907f5da6cf899a. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/USL4R2543555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41d5c44fb959a0d8c3ab7f3bd5504facd91e7e2fbd72c0ce06f30e800a72a836. 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/USX9P2518889.