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 0x48a006e7d5f2be5aef5523f76c4b5df1629b6a0033a3ed725781c75971257fd3. 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/9c2ffe3e-7b44-4f85-96e0-b1006321eb11.json and https://artists.proofprofile.net/proofs/artist/9c2ffe3e-7b44-4f85-96e0-b1006321eb11.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Pocket Universe (Gisberto, Max Cue Remixes)
Warthogs World (Masahiro Nishibata Remix)
Pocket Universe (You Are My Salvation Remix)
Pocket Universe (Rick Pier O'Neil & Desaturate Remix)
We Dwell in the Past (D-Formation, Rodrigo Gallardo Remixes)
We Dwell in the Past (Aeron Aether, Rich Curtis Remixes)
We Dwell in the Past (Slideways Edition)
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 0xb6e452ac7736aa6b686afaa4465abcded65490d3fbd4ad64211ee7ec5ae4b28a. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/US83Z1815980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe03aaffffe0d3858a170251e6f773f9cd096467e1bb6c44dbfde76597e42be27. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:03:17Z), 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/US83Z1822150.
Macropsia (Desaturate, Matias Chilano Remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89f2e7d6dfd41eadb105c327e1d9d3046cfffa43e2aa8eb07038f07b26b775cd. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/DEBE71900589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bb652d5afa8e4f6513866bceddd19a42cf34d24aa5fbd5eeb25248b2e65c1fc. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T16:17:49Z), 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/DEY471983082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6740b16e8bc449f31126df4ab33070873e6dd9ff34c6405ff9c5ed2ee1e00015. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/USA2P2337393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5346971bdfd56eca3cc830c2d39adf64f61443b65f28d245ab5842566de2c1ad. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/GBEWA2306130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd020ebd3b67514125072b46c37d230ff7625235e12e2dd47191b6e61a6c93034. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/GBEWA2400730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f9d0afa34a6674d375c01db094f8dc805986b488633d54082d83837abbceb69. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/GBJAJ2400591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f877affc5dbc1c3e45d421cff96fe630f6df20d10dbe45bce4cf23aedc6750. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T16:57:29Z), 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/GBJAJ2400592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa959bbeb79cfc98a98759a45ff95ff974c14f864fdfc0d49d76b6e35ab48dad6. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/AUVC02488720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0654112483bd2cbd1f32289435c07cff83dd4ed7c7275d34f5d0c6d7bca6e38a. 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/CH3132419257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fb6b8df1874315fc7d3c1cca7ad37d569dd7fcc7aec3e6a04a7fda7c34a6301. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/CH3132419258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28fda3b199a7cc5fbb559a7b738174027a92f7492cecdbc545b12b32e8b8f46f. 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/DEBW21900123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d91ac11a7c15c32252ce5ed01a6ece1ff5819bf789b4209b8d5aebbb74e2703. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/GBEWA2402754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5b3e4e132083bdb6f67515c6b6ff0db3227edbcf492a700a7ca3cebc0b0cc17. 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/GBEWA2306833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7a3601804b6f4edf5102ff15dec09f1c6ee7cc52102f5cf1093839607baf5d8. 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/US83Z1910298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7cff832fb8d41b7d7cb688dd464b67ba752fd8dfbd91920b7478efacc1bd815. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/FR59R1701361.
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 0x1b54890928d9997acf11fc9d0c34e072e7be9b2324083f621539ecd340aab3bb. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/DEY472070058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54877a1ed29dbf184a9413ed34ed991051ee31a8fa603c0ea6ebe25d18251919. 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/GBEWA2401263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a36ceb4c564aa7fd243cd5f1ff9eed4816366e06904378517eabb7c7bc5d264. 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/GBEWA2306967.