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 0xe4cfcf5514e0c2dea3161334ad38953ff25ecff949d4c2b69b3d26d34479e36d. 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/6c979912-0f3f-4319-bf05-6fd3454305a6.json and https://artists.proofprofile.net/proofs/artist/6c979912-0f3f-4319-bf05-6fd3454305a6.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 0xb9f0a98973250fd74b084fdb098bc5cf6aaac228fe2692b5d865403106f1af7b. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/GBJCN2122301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cec5f0bf5e2882ff24139df8593022e938a213e48972ac7fb522b752fa5d981. 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/GBJCN2122401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9f0a98973250fd74b084fdb098bc5cf6aaac228fe2692b5d865403106f1af7b. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/GBJCN2122301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2d9169fe35b2eed2e8999fdc970a5942fe4696947b7941305d187fc1c6c44b9. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/GBJCN2122701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c5c288e09657bec5c42e65a03e537c3af67067d60736041910e13d91416de1b. 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/GBJCN2122901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29ac8133b97bc18aeb1c193321aa90aba354f4ea216649c4d8815c7b19ee7aa7. 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/GBRF52100123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x752bb0100ff7f7c428fa0a0160337181291262700c0964fc07ac8a0be5486e6a. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/GBJCN2226004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b4a3f027f4b52cf459ffccce99c0425cb43024c138f78bbd25567bbeda735e0. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/GBJCN2225601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53870a84eca9af5e36e2a4bba97186891d54c861a0163a5390eebf93b2793ff4. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/GB8KE2212757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7370c44b3decac7fd5870c5478455f857a373e3d986ea1db4aecdf5d7623e10. 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/GB8KE2057099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46c799cb969bacc93f311f5ff73fa0b824ffe93c9a0b18f9a137787dfd54e34e. 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/GB8KE2057100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28654165fbceccc6dbb4f41f43a9f4dec1043d33da1e460f13d76f86b76e8289. 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/GB8KE2057101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeb702c7cfa9b62f96c1e742d43ad75081393f8a39c697f3c17bb851ef05467d. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GB8KE2057102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad3eabc6e9614740cef66317dcc5761d7b4df18f1574a1c3519a27d1e93b0f4b. 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/GB8KE1358980.
Swing & Bass Compilation Album Vol.3 Sampler
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x907911dcd310830a4b07e8f1716879aabe5a8e0f799cd3cea542b04cca118ae7. 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/GB8KE2156951.
Jericho Skank feat. Blackout JA (Mista Trick Dub Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe80a26dcc97aef1998c59c48bc647a6ac484a7c30a2ff4194a42444c3b5676d5. 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/QZK6H2550037.