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 0x75b2150d9ad135e88016f75566944d044cdab245cf2c5cdb6f785d9861276132. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fab5f7c5-e43d-4287-9cbc-e0c5db7c8d09.json and https://artists.proofprofile.net/proofs/artist/fab5f7c5-e43d-4287-9cbc-e0c5db7c8d09.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 0x1a462a9d4cb4f27c18fac20467e15ad6b668939d71f48c7582fe57d3ec9dc67e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZMER2266880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda6140494bc41ff33bcc0c6d4a47fe6893d3914dba7e3b951545666a97fa355a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZMER2266883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb50dd7282c900717d7796d53bf8469285093d71a8995688e3de207af87785a7c. 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/QZMER2266886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x797c522c357589ed994ae78082ce70fabe1c7d1f4cd05e7f0e928beabaae1b35. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/QZMER2266881.
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 0xbe037540257bbd9c0b806e927e7a8f0cf0a36ef91ffc07de5b00d95560267044. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/QZMER2266882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bc4f7cfe9a4ff2c2a7cb52b31b6a864607886d8ce233b0628cb4e9de8793877. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/QZMER2266885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x179b9ad445ad0f3c3c75549d3ab374018a4c75cee22be42aee18e6e5ebb189cf. 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/TCAIQ2490118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc765e9350a187ad788f81692d728f4818d03f39798511dcfbf027c41d22b2222. 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/TCAIC2459418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x272c8609f2dd674d368d0efec03ec34c7e521c277a8e3bec2e851b73096fb0f9. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/TCAIA2440445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eb25fd47e64eba67256ec26fc00472d3b07089f284a301620202fb8f9eb12cc. 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/QZNWW2318623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x318cb19d70139db8886201cc5561f00f2e83b3625f041a1df0add71cd7d2f389. 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/QZDA82345387.
Shohorer Gaan | Buckroom Presents: Muse in the Dusk Session 2 (Acoustic Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29b9a0012f7fb497da4344db03a2307260699b7cb45ad8f55edf16d07f328afd. 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/QZFZ72342120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09528d2a8e38ef260976dd600179400c99fc434d3775128a7fd7945d06d9d42f. 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/QZFYY2335322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ca55d820ce8e23c3406075ee74f506d42fdd94fc7f1f91680a0b3c3f6ee9588. 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/QZNWR2239664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf95cc55b76b50e2783c292445f2745516949b87fda87c65a997c75ebd773a337. 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/QZNWU2203898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebb20832754b7c2f1a4f16f3eb8428140955408b56a5f936cd5d5314ce36c55a. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/QZNWU2203894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e6e6c2417abf8667b9dcb3e0519f00461dd5a204c510236375fbf77bce61908. 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/QZDA82114860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf19beba268d1dee0b2317626b5f33e97f76f2c4b6ce97e4ef9c242168380f5f7. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZNWT2247279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bed079c3c577838312cdc2afc5fc00f5afd37664f6e082d40e8b5aa0dac7963. 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/QZNWU2203891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd01b2c382033ff10a9e37671ce6b6abfd7e530d99897e72421793bbbdd57bf0. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZNWR2275349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2652ab065899aa9e87c78285f06e7eaf59fa75dfbefc45a391832ac8f809b60. 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/QZPLR2281334.
Youtumor (Original Motion Picture Soundtrack)