thumb|Six Organs of Admittance at Point Éphémère in Paris, 2016 Six Organs of Admittance is the primary musical project of American guitarist Ben Chasny. Chasny's music is largely guitar-based and is
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 0x4677b4fa22e361c78d0c7ecee8cf8a0f8b74e93b946fa1c7d7e06a4ff956d3ab. 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/96fd8218-c6a2-4798-b812-6a92c3bdb2c5.json and https://artists.proofprofile.net/proofs/artist/96fd8218-c6a2-4798-b812-6a92c3bdb2c5.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 0x8cd5e81d10f9904a992f0cae8e72e5990f24b0c269aa5b8ced150c55b10c9f09. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US58L2386904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbf8b8f71aa67b6b299d338a597edff078de10371c1ee225eef944ab0cbc8cd6. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US58L2077705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79de4062e0afc1796044e26f0b748a3bf42d414eebbe3d3fecd75d78abbdff92. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US58L1869501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x836e14ed37812c228de852919a125a71a6dfc7deb8d42191def5733fb83bc2f0. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US58L1766403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa33b8cf86854732c827d09466c3f16e1a8e9b63b90ce839b8b50cd710f583f1c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US58L1145301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88fab15357cce8498a3eb30737598cdc016e7878cd3b1c53cea09461e3c125df. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/US58L1145302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87a11bb7db35e875ee425733a15b38dfd4538e3c3427bdb89439948f22aaa907. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US58L1145304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38c2b3e74a3712f9cb576488084c4fc356895250fe0db6678ea4288b4b845b66. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US58L1145307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf27d4c612c63752f890969aecf71159bf746ac4f3b75ddbe3c71624a76a67f0. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US58L0631201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdfd95b57fe28c35691b67ef14501fbb4784df86d5d6940901f4eeec8ad2e1fd. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US58L0631206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3788b73d723a62daa437bd48ce45f5797dbcd6e8f198d0a0636a18751ae61da. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US58L0528202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eb9fbd2a1d72a85a412e7fb320127170fe587be0c605226c2f00d7f0ab778a2. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US58L0528203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa64e69d00788d4905a9a22034aaf992f09b0b7138fddb5b60017bf095b078792. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US58L0528204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb87bd64192dec8d6cbf56773e96c1a1c63cecd0e9ea94f07b9f107af40aab02d. 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/US58L0528205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03ef4badf672999998e0173d3f2c28b01639d39ae2fae55d3477f3995289b2f9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US58L0528207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5afce260c295e9515febeec2d34d8f087b82d4f35541c5cec4f4c63be98ce8f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/US58L0528208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f3f2b9762bc49cf687a7c560b0ee06dd3d1e7c84262cda4ac0e810812cf1013. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USA3C0400079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0256badaf367978e82aa4b93bc9d82ee3f7ec757147c84bca01263808a1016eb. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USA3C0400080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b934ea49c1118367885fac2bab658c185bb5bed475848953ce16b98666418a2. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USA3C0400082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30d36e5a07ec8930b1ebd99fe675b05c44cff7552e6e3800ac1f91abedaa3f85. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USA3C0400083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe0dca58b9f99024110f4ee6eef310b356ff601674f17ba3c84812bf629050b6. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US58L2080301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85f9d1b68252aef1f30379f005b776f422273e0c54d4f3c5cc910a153e39af92. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US58L2080302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6f418bb293c8bb28e05023de9463c289ae9373bf30a733be03cac52b0e48704. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US58L2080304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d0ceabc3aee41bdc36213d4a17c20a90b557357f2d536816bcd74db65cec028. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US58L2080317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1714fe3c2083d962f6736168a95809d66cb808ff879e8f1812f445a9a22fc73. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USA3C0910031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c49892aadbb8a3cd99dfacbc95730fe5e72f642258125764cb601ffc123f55f. 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/USFMA1900042.
Down In A Mirror - A Second Tribute To Jandek
Arise, Therefore (feat. Six Organs of Admittance)