T-bone is a steak of beef. T-Bone may also refer to: Music Trombone (nickname) T-Bone Concerto, a concerto for trombone and wind orchestra by Johan de Meij The T-Bones, an American instrumental p
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 0x038ef034692fcd40d1d42805edd10dc4d20fa55d9bbf90d1bb50ab26cdd7bbc1. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/66ec98ff-1265-4fed-80eb-050b37c35aec.json and https://artists.proofprofile.net/proofs/artist/66ec98ff-1265-4fed-80eb-050b37c35aec.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 0x8e4a5de18f7ad0876dd9bfdbeaee5c0f739dd1adaf4b606d12b655827af8382b. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/THS089701002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd2ff7b3e147248beb911fd01ce2d9e0f149ef5f7b65fc7b1716c24a923f2de9. 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/THS089701003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebe9aad4c55f0a157b59848b2ad873f1d2be976a036e4c587680385f3ef33ac2. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/THS089701007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcd7ee973b05c9f586b6416b7aa0c98bfebf1987510a03ee3445791f6826780e. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/THS089701008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4e4cb495c9c5f6f7fedd11b067e92113b1efeccdb1a209584d1855acbd27fb6. 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/THS089701004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb486c040b1b42cdf921cd46ba8fa27e4b629f3646a77c610d9e067e758621982. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/THS089701001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e350669e2ebb801f7682b2b5158cba407549f263ec46a0f842a8f6ac05abf1d. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/THS089701005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd2ff7b3e147248beb911fd01ce2d9e0f149ef5f7b65fc7b1716c24a923f2de9. 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/THS089701003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcd7ee973b05c9f586b6416b7aa0c98bfebf1987510a03ee3445791f6826780e. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/THS089701008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78a309a27219bcc9622e3af6c2dbded2debc46bd8dbbb57ffb81089c3de35580. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/THS089701006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98d0f29a85ec9852e1967266abe69e3ade149e9f5e7287c11a027f503f4cf11b. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/THW099700079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bed98fe18acf4c37f3418e8acfbbb53e0316054a40925689d5768d2bbce8801. 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/USTCG1052048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b3b6823d6bb8a9f7f61e0f642e8989cd71e0c2f446883c4e1db6c8f52a1958d. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T13:27:11Z), 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/USTCG1052049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdda448ff3ed4703f28866932e567c72e614c89929cb489ca43332f88364f1912. 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/DGA0R2305023.