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 0x8031cd11820b7f9a9354132bccbbe00c772218f1d03a95e12b46288c902a5a41. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d53b0b87-f04f-4ace-9f94-b70bbad7425b.json and https://artists.proofprofile.net/proofs/artist/d53b0b87-f04f-4ace-9f94-b70bbad7425b.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 0x12c996d78bc58052f8c4b0b2258026a7119a56ff5d394e91e911a2213651bbe6. 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/GBTMZ2101075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87da6a7a9b714c647e5274d3dd6b4ce15e080e804a1e2a691326d81f7a80830f. 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/GBTMZ2401248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66f820bb15f8f49fe54356e4e545e7f4d1da0ea23dd9a94194881ad81e986f72. 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/GBTMZ2401230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x261b2fb5a5d4a33fa0e523cef85ba916930a537e0f615722e640d7a9285e81c8. 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/GBTMZ2401265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0b4cea40a4810af1e846e86a99b5b18fab0df2b040afb39c524d4687a51ef37. 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/GBTMZ2401263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87da6a7a9b714c647e5274d3dd6b4ce15e080e804a1e2a691326d81f7a80830f. 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/GBTMZ2401248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x261b2fb5a5d4a33fa0e523cef85ba916930a537e0f615722e640d7a9285e81c8. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/GBTMZ2401265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x867603dc51c1937f18c93a3b136e4d288481aeb7fc06fc1ccc24052750162084. 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/GBTMZ2401266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6da117a9c5411d691e591d79c9eccdcebd01b5ba1ad85e9e9b6237b979fb096e. 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/GBTMZ2401267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x460767c837f350f765bd3969dc49a4840a0e69236a044d34b81acb7ac1203f17. 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/GBCJY1100121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe8c2a1628a37a07f134e48a0a3ec6433987aeb845d058b035fa8d4a96b45d0a. 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/GBCJY1200056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfca37f71760d54dbae0e0309161781b646bf0f49f1822dba6462208e887f808. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/NLCK41099846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x460767c837f350f765bd3969dc49a4840a0e69236a044d34b81acb7ac1203f17. 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/GBCJY1100121.
Save The World - Futurebound & Metrik Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eb6be1788022fec6a1e43a211fae4f6e1517cf72fabe3ed90913070d42e7a96. 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/GBAYE1100781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c7c67698f9c14201050b2bd103e51a625e81d64336ef91e086caf7a8c82c305. 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/NLCK41063450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab8eb52a5b3dca46cdfa9c926f7710bde4b5de2665eaa5f77cdd05a3ac0ab4eb. 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/CA6D22200116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2964541cc9f290cd604e5c9a2952766b1237ed936c25f6123fe1e58742fb3f78. 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/GBTMZ2201111.