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 0xb994e8692ca972cb9693264c8bc53c38f2766a974ff2ab739946619e791237d1. 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/3defe66b-2912-43f8-9dc4-e6182d7618b6.json and https://artists.proofprofile.net/proofs/artist/3defe66b-2912-43f8-9dc4-e6182d7618b6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Moments of a Never Ending Trip (Remastered)
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 0xe1bd40544505ce7c3ec904b5ee30e7f6a58c476ef410ebd8cf5d6a95b8f90953. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/USHM92188368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c495fec0488f396aa62783f7402bab6927ddc2a0868f43acec80663265ff450. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/USCGH2293230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49b123bbd3c109991870e9bab8cbd7b7e66372f002ba217ef6b944189bb21f7c. 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/GBWUL2214048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49b123bbd3c109991870e9bab8cbd7b7e66372f002ba217ef6b944189bb21f7c. 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/GBWUL2214048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1cd529c120b339396e42bc72f595df32c1466442882e275f589f8757a1742ee. 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/QZFZ42322630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d68602136be6cfea0cefc6ecc9b0db683de23fe474a46ebc99437ff05a34b0f. 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/QZK6H2338517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a24016e308d7a3aa50cc57f2cab68522393baeaa09eee1679de8b5129821a3e. 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/QZWDD2343647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12f2cd762b5474df16beb0acf621739eae07df73ffa273592ce756b536a2a777. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QZWDD2343655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b1c6edffa535f714a6f6b7ae65a943c3be680ba73e01f361f1044a872835334. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/QZWFL2334238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc9afd8f0da492f7dfb8d237f158a5fcd6e043d5e95a207358b0577d93874a5a. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZDA52424168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07262ad9bf4710e17609d8ac51c03e6e856c10f6a92ca2bd10496d32caeb7f79. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZHN42413204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4002ac4af5c56d9de709b618eff80990bdc1913268b7b3170397bb9d4d4a7e13. 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/QZHNA2414572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d0d0e9e2754e84db82b2aa94ab090457e54246aa29aca63490b78258c355b1e. 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/AUKDT2400664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48719eaa8dd1adfbd3b34e75948d44677ca7bc13dc0e8bab863ba42d7006b10d. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/AUKDT2400727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc658a7a3909fe95b417d592e5deed85c96849a3dcf35e2e7a64ba779e91a4957. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/AUKDT2400775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aa0d354cf9f417710705b7a6f0673a9ae687dc976434f81f05bb6c90e7723b1. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/QZPLS2541969.