1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x8b3df578230abbb8e4afe026f165e22b8724817c4b03ff67512461115971e9d8. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2aeab187-e5b0-45f6-b212-1cc46fc1ad11.json and https://artists.proofprofile.net/proofs/artist/2aeab187-e5b0-45f6-b212-1cc46fc1ad11.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Walking The Line (Between Heaven And Hell)
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 → block OTSBitcoinBlock must exist at that height 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 0x30b1caeb033649b1ab1feaed52966532fcde088df448fdf25e32734f4b3d76d0. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:00:21Z), 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/QZHN42538341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4165eb54a5629cd31b4d9e5368cff1cd9cb6a8d2a353798ba6d2dad8321468e3. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZFZ62512312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99f5a922bf68ee4c05be7486d935d5be703682619f19075ba5d96323a6bcd5d3. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/QZHN32522232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c904a5d41aa9a828ac42dc0c479f880426a63ee733429e5a972e0f2e14af95a. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZNWU2539798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe5e53bca6723171393d06a480e4acfd3aa2dc3660b21b03b7589779eb2fb50d. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:50:57Z), 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/QZTAS2540823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd06a9f3fc3d81b3db568cc3302276da7c160c45bc0a3aee412e96c6aada6cb7b. 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/QZTAS2540824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f1b0c5884931b10914f8dcb2ef34f0994a9edfd1c5c83778e898d7359b22288. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/QZNWU2539824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa3be543f76814328dc03106925a052d149141e1eee02282975f8960a143639e. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZTAW2508838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8f44be591966b1b03e85e51c48365ae2f0d736fd7f46b95357700680caf2ab0. 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/QZWFE2544596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a3ac3757f3586bba6ec637f8d49c1d0a0b1b838fba967ac7fc60926c1e48421. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZZ762543079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d9781d7c2ac8357a543bb62c38ed27be86b1f51c8d94ef6b24bb23901828f14. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZZ792593869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa39b9d23fea26dac7f00e4f5cf93d601f7c3f082357e4f39f5f32380dafb1fd7. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZZ762541219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe54add177a6e536d7a225b2a0d4b51be64cf0188247bcd02d3248c10f6e29e8c. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QT3F42522937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dafb33871068ac0867eaab025b58f51f86f408856eb442d97f7bbeb97e6da12. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/QZZ7P2492814.