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 0xe10433e5aae44cddf7bbd2c30d58eb6e91541cbc4cd9c98204b89f12264b7563. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f1b30d73-f121-4307-a3bb-a9e0fc60c8d9.json and https://artists.proofprofile.net/proofs/artist/f1b30d73-f121-4307-a3bb-a9e0fc60c8d9.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 0x65c7bcc51546ca3e82b8c0bed2e3ff78ea2fd3351f54583198e4109c77416c25. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/QMFMG2312179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7179d653020ca8212eaa810afe249c5ffeec3384bf9509b11ba45fd2869af6b6. 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/TR4952300098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ba1986874176a16336c852dda71b2ba16e435e49b5fa347de56879d3c3467da. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/TR4952300170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb64d1472b33b7c4f376dcb35ba2622e0e18afe954df87c08b9719c1808e71134. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/TR4952300030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76f35e82f675b30f868071e0254212a00eb4896ad6850d719decd93cfedb3d1f. 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/QM6MZ2206845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fe3b0e358906f4ad5e94a9cdcafd7769e466592cac45dd3f57d4573ca226f5d. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/TR4952300121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d94223a8dff24edf988fe83d8477f75f8efe9a489e2068a677f8de8c61505f1. 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/TR4952300084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76f35e82f675b30f868071e0254212a00eb4896ad6850d719decd93cfedb3d1f. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QM6MZ2206845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c6997508ca969c42f413caacd345bbba429b543ff3ad542769efbb1835cd640. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/TR4952300100.
Bahçada Yeşil Çınar - Gizli Bahçe Akustik London
Bahçada Yeşil Çınar (Gizli Bahçe Akustik London)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ba8d550edc3aecd4f4ed21a30d951371a13c15dd42b551951dedd743ef3385c. 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/QM4TW2505564.
Aşk Yoluna Canı Feda Kılanlar - Gizli Bahçe Akustik London
Aşk Yoluna Canı Feda Kılanlar (Gizli Bahçe Akustik London)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6a19fd5fc91284d53bc9eab71e3c733f0dddbbf72801ebe2603d2d74893a161. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QMFME2483868.
Zülfü Kaküllerin Amber Misali - (Gizli Bahçe Akustik London)
Zülfü Kaküllerin Amber Misali (Gizli Bahçe Akustik London)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94b945d32d3492c205da2c444923c0b38e5e8619f91f642f960faa8a2dccbde2. 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/QMDA62412156.
Bir Canan Götürdü Beni Bahçeye - Akustik Live
Bir Canan Götürdü Beni Bahçeye (Acoustic Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8887ab049e57cb76118bbefc65edc36809db38f0345dc59fdec5b9c893920ab4. 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/QM7282450306.
Canım Efendim - Gizli Bahçe Akustik London
Canım Efendim (Gizli Bahçe Akustik London)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d9b2158d9359492ae4fb644c00d988af9d7f673e1a0bb8ae05180ad405be395. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/TR4952400073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf7dc772f001d8e9617c776e0722559f7610c352431e758bfaf75afbc969e252. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/TR4952400048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4302170fef352869ca5802814fad272f3599b88e44dff0f4b45ec44d9199bdfb. 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/TR4952400035.
Yine Gam Yükünün Kervanı Geldi - Acoustic Live
Yine Gam Yükünün Kervanı Geldi (Acoustic Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc201efd616613bf78abef86118dd493bf7d6998d2f75d6c5adcdeb343b96bd19. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/TR4953400031.