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 0x5120f0f5996c7baf93716c1da23dcbaa8f35314190d7b6694c55c0af3462fb2f. 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/7e55469b-ce4a-4ff7-ab21-b388697aa3d1.json and https://artists.proofprofile.net/proofs/artist/7e55469b-ce4a-4ff7-ab21-b388697aa3d1.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 0xa424fb40c1400003d55a8529177d50ec749d2883b91ac04e9dec8a265252ea36. 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/UKW3Z2401283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7722cffaf0a462e744b3645be57ef59dc81b879e7052672cddc199341eafce41. 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/UKW3Z2401549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da03af782c9a4ec2b537a1e8c7a165d830fc40346c3761fe8aaca8d6e7f9873. 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/UKW3Z2401550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1888a65482c25c0f995c6b209be34e072faa0819478b99c013361904d8d3e8b. 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/UKW3Z2401551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fabd296b969828f149040acb7f19e0241344259bfe654a6ef06210fc67312d1. 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/UKW3Z2401553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7611e06de7a54b624d060e460915b97d1fca6f69c909a9ccd1b91578d2142675. 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/UKW3Z2401554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d7cf321dc5fc4bfbf54920bbf02910529a74b2a367675fb6dc2deda5710a883. 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/UKW3Z2401559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd133b14a8b1d9b3512186ff16e6cff642a3aa8bd51d0ae3330b5fea982c1b6f9. 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/UKW3Z2401555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54520a4903c401ba427d1e9576dc237ae08e38967b374f7cb323056f876b459b. 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/UKW3Z2401556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95c88a43fb184c556c8bafecf6f4476fd8020edf5873d093f5b16bbdd5f8d5f8. 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/UKW3Z2401557.
Come Up Here (Beautiful One) / Lean Back - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ec90530db5584c543246b9ec674b3af4a4dd90c9f75d6a248ae30700b88c3fe. 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/UKW3Z2401558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93d33f2f93a8c46c01ae276de6516742db958f45740c332b4a5c06155adbed28. 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/UKW3Z2401284.
Come Up Here (Beautiful One) / Lean Back [Live]
Come Up Here (Beautiful One) / Lean Back
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x518d10632c6725807f528ae9e0262526b58fc606e35c130f42a9f71eb5cbd2cc. 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/QZZ662340881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b70bb31cb3e9847e2e16e7417f58e899b8a56fe5d127dd561492c56bd2e8b4e. 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/QZZ662340882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2554ebb1544751ff2591070569fb8f36bdf6ba4e3578a5f3efa3a53695515c0e. 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/QZYFZ2394599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9209c8450f483958d7dbed273d67fe4ab07d6371962a3052a99003f701a14ad5. 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/QZYFZ2380558.