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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd63f9e4b9f373ed9efa03bdb264a99a6165f7ca1c36eb630f85829c455c54af0. Chain 2 (Bitcoin): anchored in block 953678 (2026-06-14T19:23:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/616525de-ebaf-4993-a41f-93190d0ab7f3.json and https://artists.proofprofile.net/proofs/artist/616525de-ebaf-4993-a41f-93190d0ab7f3.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8249fc3ed4b9db6a5c646ed96a2f9f89f7f82cea7a74fe0deff9189485bc6e7. 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/GBJET2100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e13e2d790483eac766c6d32055cc4716b10a686aead33c107cc6eb590888b65. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:02:00Z), 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/GBJET2100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c38d6f0f883e4d2c1da8edfbb4f293f924566471bbbe6f07039a903472e9552. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GBJET2100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac5759a8b98f5f637a1df10784c08e65c31b5fd626c3b445b016ea67107ee046. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T04:55:29Z), 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/GBJET0100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8249fc3ed4b9db6a5c646ed96a2f9f89f7f82cea7a74fe0deff9189485bc6e7. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GBJET2100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e13e2d790483eac766c6d32055cc4716b10a686aead33c107cc6eb590888b65. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/GBJET2100009.
Hold Yourself As High As Her (Lynks Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d1e2766fdc1476ca599468beb7c5a2cef18a201fc8c62e95bcaf21ba686ab7. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/GBJET2300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80d73a4959ab251060e46091afb1195c0040c88ad6115ddee4aff1ec5f80ff40. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:26:28Z), 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/GBJET2300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d1e2766fdc1476ca599468beb7c5a2cef18a201fc8c62e95bcaf21ba686ab7. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GBJET2300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80d73a4959ab251060e46091afb1195c0040c88ad6115ddee4aff1ec5f80ff40. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/GBJET2300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9395e8497facddfe1f1196ad37d6c592ea8f6aa0ebd8770fbeb280bc6a585254. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/GBJET2300010.
Bauhaus Staircase (The Complete Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86077779fcc7fa68706f21339227d03c9b63beb80ec354a254310907ceda3391. 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/GB2YG2400080.