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 0xc1d5c96aeabc56d91fa7e69de636a50aa2a0bc2ee8c73d31908ad9be57cdadb7. 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/1caa4617-1968-4b92-ab9d-e825d312522f.json and https://artists.proofprofile.net/proofs/artist/1caa4617-1968-4b92-ab9d-e825d312522f.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 0x323439b211959ea1d8c90b0d67cb140659a0ab63039154971dbbf70fa21bf413. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:44:34Z), 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/QMQ891200057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e125161431b5f17daf10246af397321d06effe21ca924d9b2b1fb8e17bdf6bb. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QMQ891200055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6589a915877e52ad8b79987551bfe19d530e8b8e40f58a28e5eac59115f200a6. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/TCABE1270384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c7a7eddc5f903a73b104c26dd717bdf30721d9e7b5f621f823cfd7d5bad67d7. 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/TCABE1293877.
Catch Me, If You Can (feat. Chalice Serrano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3cd00c4cc43d80bc54f84d5f8171a92cbc18505f65f379fed983730a97b95a4. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:07:17Z), 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/TCABE1293873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea68fbf22ea97b896b07d11fb06c61ca5f1b6c67352d65bc23b648e56975f208. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QMQ891200022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa45936a874d1d8ef2feb3fa58a82f2cee95bf04cd72289ec0284f212fad532bc. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QMQ891200021.
Beatslaya Official Hip Hop Dziri (Freshtrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9486deba2f3f91909d757e89ecdd6b3a3d6005430fb6d1f604f31caea785de9f. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/QMQ891200032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x395097256b52c80b51112a4b71ca330dcaae1497cfed9ff5148e7cce9ee7c136. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/QMQ891200034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3ff5fc499b14fa06c941f7c111e1cc30b6e026687d65ae81f319f9fe178bfc1. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/QMQ891200086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x742109ce3f4d8d6b71d2e0aef294b785f27c025dc8479cf1641659584238a20d. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/QMQ891200088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7e5f3bd5f24f91cabeb9f925b7b664901ddf76b0f9550f7cafbc4e6d653884f. 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/QMQ891200112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x376cd33c816bb4c5ca8dfa6a77a4c500e22ded3ff0de7605f9349edf65a146aa. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:26:11Z), 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/QMQ891200107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a63e337b9e1f62135c1f7e02980776718b8cafdafc220d33f5ab6b91f83cf82. 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/QMQ891200114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ec24320980110347f75dfcf607acee57599ea4c2e271762c9afb2023f553de3. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:37:27Z), 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/QMQ891200116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f8848af6c759d2a243629022cdb31f65ddcb8f1a417d02305c49889cc4e5c5c. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QMQ891200130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e23c85f469aa9b1a8f198e0ee5f9dfba6d8b96358c12b23b698d5c77166ecca. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZTAX2285885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd58e512c096c083baf1921d171e4cbbf06968ea5d690c550b8cc0e714bfdeb0e. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:01:55Z), 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/QZDA52428535.