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 0x87f5ab9078e2d7ef2d57ea745f27266d080c0bdb1d952e2efb0844b17d9fc501. 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/947dca2c-103b-4379-bac5-f0a0b98eab22.json and https://artists.proofprofile.net/proofs/artist/947dca2c-103b-4379-bac5-f0a0b98eab22.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x035a75174b56da5a677e2ba3d11f9b7686fe04f5b96f562850e6887464d263f4. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DECY52302099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eba1e633f165d684bd9663b7cae33c6436416d54a12c901e041895c4c28bb4f. 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/GBKQU2429300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41ddf2d34822e97d188799e5b4d3d3d1e9917ff3030d17413c5c92885e312cb0. 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/GBKQU2429301.
dancing on the edge - Dylan C. Greene Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aa172c7de1282ad8e4f28379b54b3caf986b23f064b3b9888f6ed1fba19873a. 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/DE1AO2310167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1fb674c30ef3003654cf55ed7afd796ad9e60bb51f4b3cf3a1b2ebcef85916a. 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/DEZC62273434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x278ee57c71da3e5641ce3d3516160cfe89d3aa21b7403e45dcfac8238e5634be. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEZC62265253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2920f750766b5278b43a32fbd95c6523f44d47a6bb6ec3348ac279a25a929031. 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/DEZC62257950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb53d7dfae6ed7205ba6278c991a97b9f717405106632f137fadb685bb1a08f46. 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/DED622100085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbff99c339ef9707f8d8418da104545df3051f943a2552f2b457b761f9399491e. 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/DECY52002568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bc987ca1eab8ccd091d4fa0a9d8abb2c22d2c774ea46a859c7a42b8d36a44e3. 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/QZAKB2439518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d0aa224296e0b08c439d2b1f473d16711e525b76d68e4a4d4f8db02889cc1b3. 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/QZAKB2449078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3018bf36ddafc87fd24e28b16d2350212a92f0ebfef7ff15ba90150f6ba6c62. 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/DGA0R2446210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae5a1f0774d9b1db3801557490da1826a14383296252652d9513f97ccc525ac1. 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/USNRS2443744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ac44ef3efeea58d4b385372ffaecc9df6efe585677d7e79860c190f3dd19490. 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/DETB32400727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bd872eb5bb981a30d10b3e7d0db90087946ba2798be1e8bad0a61034c07e7ef. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEBY41200789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4cc0da146a227c3678125c5549b7fdf06be5056ad9e9a8ca17f2fef60bcfc6c. 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/GB6LY1601425.