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 0xa9210425e30246875faec0f41f043ae4f642955089a3114cf6f566a2ddc51a18. Chain 2 (Bitcoin): anchored in block 953727 (2026-06-15T02:33:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8f4161a5-7b08-4b15-aba5-0119d549b9b8.json and https://artists.proofprofile.net/proofs/artist/8f4161a5-7b08-4b15-aba5-0119d549b9b8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Band In A Van: Bay Area Rising Live Studio
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 0x92c169d4b8f94e2585d013a60ac8348d9438df04cd7ae30615fb84f683c1c3f6. 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/QZRP42522822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f5a35d9bc48e500e5e9751a65cb5db86f837a38985e31c7d446752720faa279. 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/QZRP42522823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4946c0d6ad1b7ae01180aff241059e262c22c0943fce295d3f8d1d34c9400baa. 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/QZRP42522824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3400cb869418b67cf20ff15a693a6215090977f8587416569653d2f5ee73399e. 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/QZRP42522825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fdc52a8a993722f761aa2afbc18291775722683af6eff2bdcd2baa6ce096dfc. 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/QZRP42522826.
take your time - live in a van (extra track)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8a09d6790f3d9d92b489771edef10a4a01a7e1c7a39374351074df2c63b63cf. 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/QZRP42522827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab556c0132bd564d762be0145c8794577295fcf0758c679b9385755798dad737. 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/QZRP42522828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x966521d232112d2bf0d63b7dccdb0a8ee3e648269e1ad2e03ea3de7aeee4fe9a. 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/QZRP42522829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec19ce2860673c708f9510eb8250a47a5252ac152028fc4b46efee828494313e. 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/QZRP42522830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd3325de2431efb0bd07709fcf93191c44880d9238fc62cfb0a8148f8fa9bd77. 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/QZRP42522831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4566194234e4b4ab2b594198702968fc6790a8e42f899aa28158b24763182c3. 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/QZRP42522832.