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 0x94b698a1d2df4fe29e5ae1aa79c4db2043aa2abedeae6f70b16a97fb53197afb. 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/6c506b0d-b43e-46c4-a69c-43f41a6e3c15.json and https://artists.proofprofile.net/proofs/artist/6c506b0d-b43e-46c4-a69c-43f41a6e3c15.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 0xab082039d77a3771a3348ff289e4d8f90140e4345098427767628cda70f7bd41. 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/QZTPX2253865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68e63120a8b32382370d24f9a448e5664821d9697217f1271b4fbe37f3c7f723. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USL4R2175801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfc90c4182a35d29901d4e2b681685cb25c3c787108298a56cef0c36395291f7. 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/SE6QE2081352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b42006bbcca7750f51da81f85d0110fc2b148a190c3a73665ac446df142fd1d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/SE5752060238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb70ab1e07d82264560e8f329dbca4be97f50ddd614ab393dab9e1417c7eefa91. 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/QZNJW2320903.
Gata Rkt (feat. nysix music, andrehbred, son gotten, uzbell, el goldo de las conec, jack napier, edu music, el pesa 9, timy song, Jhon Jairo, chuky indica, chulimane, gabo el chamaquito, la f
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ee06605a6894fe51b14a779b16e7e5d21e316a9108cdc9b7314c6def0586c61. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZMZ92257448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64ef185c1232e5a9975ee73f525a39e61b5f1e3a4e26f03413d621cb5112d021. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZNJW2291024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x011bd8a4545b79e4207f8bf4a4632033ca00cac36234882d0318b7b969baa4f9. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZW9L2494693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d56a0d0f1c8ef4af6b5eadfab556c9c0c6ae9acdc062d3df47788b5c4310225. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZGLM2463256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54c8bda89f09b793663e40613232a7c08e57d7c12bdbc296d41b19b8abccb0ab. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZHZ32241384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3288250f55c5a2141de10bb63963546c8055ee4c4e923a941f8d6b12d0d25b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZW9K2471861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dde5b933774351247015366ecdda9c227fa0043628d4a88641d3ec5567ce5a3. 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/QZNJW2398717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa642b7d0d29b75fe55f8eebb6f8154e8280fd6aa4f6a12bb61447c6381db098e. 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/SE6TI2015523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67387af435f8aaa1725a6c694e8c158e9e3dbba5d6a107b692579bc72e08ed8f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USL4Q2184025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd5b0abac4329c4856e564938a6617259afcb3cd1a7a35daf1c611ff1846d6ae. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/SE5752076183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54c8bda89f09b793663e40613232a7c08e57d7c12bdbc296d41b19b8abccb0ab. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZHZ32241384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x028a08eecb926da606b9a0046772999baf85856f8b4fd2a5d3d3125ea5f0ab31. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/CH6542050085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21c95f70715bbb3653b1a5177efa560c14c1d5a8c8673124e9338d2227fbd95d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZGLS2224179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x526363ad7cded2ed546c2b36617b12bdd04f1573497d344368f9862d1a445fa2. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/UKXN22133922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85b24e0ae13c6a0d2766ac9f2566c75db2f6e1e22bb5276e20ed6c5cadc07c02. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZW9L2494455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60cf0b2f833870618a85370a8094ea8425f48fb42571ba720234b26152f18d94. 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/USL4R2032263.