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 0x1bfdbc4ec816d3da8745d96c48043ca4d2cb34d8aec1eaec2cda26ec139ee087. Chain 2 (Bitcoin): anchored in block 953599 (2026-06-14T06:43:55Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0d342645-8e90-4d2b-9152-d83d99d0e9b6.json and https://artists.proofprofile.net/proofs/artist/0d342645-8e90-4d2b-9152-d83d99d0e9b6.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 0x19955b1db1496d5169182800bb8697dfca7fd00c065f28a1b5ad5be17f1257d9. 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/US39N2302245.
Night on Earth - Maysev & Secula Sunrise Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43d688431698244688c6dc261b289eb76ed3b27a120d194b4cb3a57fc983522b. 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/NLCK42229082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x804fe18061d465c27a614be76081d8200e2004badcba079430beef8730da213e. 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/NLCK42229083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b1c3667dfe3431ddadfea972859c3d7470e72f1bb2d45093cab97d308177d5c. 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/NLCK42229798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a652c1bfc29c72baedf9a932e5afbf56a5d691e9e4b99f61aa3a94aa8ba0df5. 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/NLCK42229803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33a5db7c1929de2c50572eff1c93b50360be77369a2c8944d55e6d4fcedfa5f3. 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/NLCK42229804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43d688431698244688c6dc261b289eb76ed3b27a120d194b4cb3a57fc983522b. 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/NLCK42229082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54ef60bb926f03a1af54c7e1f2737d177a48fbbb96d73e15b401c2842a4e988b. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/NLCK42220343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa26e628655b498931c2612618c4b401eb65c64419cb296ec1f375cddbd6b4ec6. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/DEQ022111433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0c498d22405c5778abdbc1ac09a09982c6f8e04e9ee2198c6dfdd0d6e3da8b4. 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/US38Y2401169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d63845e3792ad06589505933aa0a839ddebb5beb9fedefea03694b73bb43eff. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/US38Y2401171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1372a6324987706b73d652b0b8ff65d11dadc978ee2f5b8c3e4e7fcd46ddd50e. 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/US38Y2401173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0c498d22405c5778abdbc1ac09a09982c6f8e04e9ee2198c6dfdd0d6e3da8b4. 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/US38Y2401169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe279da82445a371ac2b539a4dc851a382ac38f722c9abd6d0765632d5771eb0f. 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/DEQ022391890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55d0f111b974c4b998386ebebff38191ab5e052ba208af76bd5f1937187a32e0. 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/NLCK41089431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2292143977959d9b057eccad57e77afef26da7845c1b246840b58df0a07ea747. 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/UKFTL1600218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e65e120ea26cf45c4dd847b4010799a50d747570729527b3dd4b2369fd62a96. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GB8KE2056542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe279da82445a371ac2b539a4dc851a382ac38f722c9abd6d0765632d5771eb0f. 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/DEQ022391890.