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 0xb24bbdc8cb39bfbeae67324e5ce61b16565a8cb85d415a712e9d89c15385c819. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/01131555-0445-4171-ae18-e9872a755716.json and https://artists.proofprofile.net/proofs/artist/01131555-0445-4171-ae18-e9872a755716.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Late Night Tales Presents After Dark: Nightshift
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 0x710d3c73c27619d6aa0d442c67511494f2c928664aad64b3d27b1bd8b3fb49d0. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GB5EM1401379.
The Pursuit - Good Guy Mikesh & Filbert Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d9a434fc600da6c05669bdaa4c29cbd059a5e44faea088d9d5bd4d990e66435. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEM091300339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a592075ce9e2cf1aca896d7c6c13796cde635d1bfdeec0c0275ec174bb8be4d. 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/GB5EM1401376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x346fad0eacde9ccfb7c91a585109da2d730347b395e106e6abe9698ff8e6143e. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GB5EM1401374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ccdb1a397a4821411aae6e0f466c9d8bbb4f6d8ae2936ce89b2183c7e3fa9b1. 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/DECK20800033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f1ac98c3e05cf0750dc65b672d65539e13e2c1eda1270ab3dcbc595981dbc62. 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/AUG901000034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d8074868215fced582792d2dda87cfcc6d55d4c3c9cad7e87818b71a1045752. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USUR40309104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x676b476564da47a9ca860eec46652d9867b598fdd72ce218c988a18e3053a0c6. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBGXG1100359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb32d4c8ed1481ddd677f8baa50822432ce70b9399155ebcaab9052b78bc3218. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GB5EM1401371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6bf6d4674f327552250e88fc5d5bf79149b1195cd5f866ad38417169d3346cf. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEU671300234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3a606e07c29bffd999956f4dc937aa13031ec523ba09d82572762b1fd3e3c87. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ITC009600705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41856b0c4150840506e72b919027355a9fba8001623bdaa9a43c37ee0ba352a6. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBPXX1400001.
Late Night Tales Presents After Dark: Nightshift - Continuous Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff1ad706c7037d566902d420d6a255203a02991b4481405baa6bc5b9f48c7299. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GB5EM1401380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62cd07e09c9d8bd81d18ae80b1164e339599ed689f1baa49c58a6d537a0a2ee7. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USYBL0901162.
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 0xcce55c1ef7998484e0028f11535e81e7b723dc4d4e556a7ca7c343f9c5e889ac. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GB5EM1401375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a9c4fb1b4e4433cb3bbefbbc842e4c723428a69f03b423e44458e88d5349e53. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/GBSWL1400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54f6a5c477b4d7d0a0821c9f2d382c970e2a63a6337ff6e9cdd1988b8a1fbbc1. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/GB5EM1401373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76035ee5e5e808f31e45259427031a1e1e5437f798d68ac657b69eaf5edcfb5d. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/GB53R1200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fff67f9ca120207105e31ed9a34440ecfa4c1f1410e6cd74e5cc647b0b9511f. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/GB5EM1401377.