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 0x83963e4b1469225e691d977f283fa046899817fb38b0a537c7aab61338f3e134. 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/b8069bd8-93bd-40b1-b2d9-4646375796de.json and https://artists.proofprofile.net/proofs/artist/b8069bd8-93bd-40b1-b2d9-4646375796de.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 0x43d160670654574ef001552f748c60512dd0bd24b8152289a49f6504d78e104a. 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/TR0200500275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x852db244252ece8454744d443a99efe146afa56f210c02430f272fb19be0a16b. 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/TR0200500276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3808a8d6b2351b574f1f375a5f12e48b8e13269935591201ccc128c79c7767c5. 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/TR0200500413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d80bff5bec593eb8793eae0cf2fa974b63494af64d992015af6d4201b006d03. 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/TR0200500278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b947eced9e0f8da76017f2b9bef07475cab12d9a693222128d15f3b33c3169c. 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/TR0200500279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf25c3fabfc63b8ec6963611a8dc5d1b0efc05371aee9d210aa6f9c6f52752b0. 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/TR0200500280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xade58c5db666f73fff66a185afcadd4b7241f59ada13e55a097f0e6f2780b205. 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/TR0200500281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23b68c0b4eae1ad58a0afbcc771c2b8593f8ed1efe99f6214d9c2882198fd272. 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/TR0200500282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d5c3b14bc7c70a568f5dc9f994eec4fd926ba44569c3c0e68644dab73b9d4f2. 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/TR0200500283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa218bd199a1901040246b666a420b90c1de31af7670ea6427ba2addf134b7f42. 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/TR0200500284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb83ba82634bccdac06a11937c7dc62433841ed320c47626d3c27a6ec9ffa81e. 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/TR0200500285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ee5ada6b435853d059ab69531b1b5c31a6d68fcbe552f472218ef4ab9ab7da8. 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/TR0200500286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42dc9b8f8af521b075ec304909eeb60e14f0103c0a3e78daa637e7f27e145598. 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/TR0200500287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca1bbf91ecdf305fdd0a4a8754f48c88dbc8fa1fbd62b0d3f18ac861824fe258. 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/TR0200500288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x799cd978548b4664febb201e74abe4a5f0a0151755bb319a3258cb66c9aaad96. 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/TR0280601673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x009692ef73e2fdce0f921ed9269c8d0abb19fe5b333f82b25a30a1719f294b23. 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/TR0280601674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9567237ff4e0c0f77be3a65cc9556838e19ad5cdc85c5da71b73fe583eeb858. 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/TR0280601675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf4df176a8127876f9100ca3d406e73061af07d181da23e8a182507200820853. 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/TR0280601676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9c2ec498342797de0384de2ae7f9f3af33e35ae033363d2cfa231a5896ab5c2. 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/TR0280601677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x197ecd7691c47c7ad154bbdfb9cd0c12cc5d2178398413c412c895e622ff0739. 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/TR0280601678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8123f68ffaef479a4f20ffbe33cddd539833e0bd0965eb6fbb26391c5ea37862. 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/TR0280601679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfa17797e84d673d67aa85c6a0518e25b844a9e3852a5a43e045706a3a966a56. 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/TR0280601680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd08b0428be73ec034b43b846811dcb1d72309e1c805770b91af2329cd991e267. 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/TR0280601681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3e82d781679d5736418f5c222c3c3eeabd6c10dd5ae762bb7aaa2144c1d17cf. 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/TR0280601682.
ALTIN MİKROFON 1967-68 (Türk Pop Müziği Antolojisi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd292fc7a5836e90891f2628a884b207e9dff6313cad9db201fc1b15758c59a2. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/TR0010500617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x841837ef4f2230b94635c666ad46423f9d573975bac6b10a2746a3df48c687db. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/TR0010500619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x435cd9f1ec667f6ab35d065c3f306d514adc918507bc341d016a761277403330. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TR0010500621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x944aa3bd757fae6805a962e75c33ec8d322c0272b7497b20053f28c194014df5. Chain 2 (Bitcoin): anchored in block 958042 (2026-07-14T18:24:07Z), 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/TR0010500623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c26ac144ba8fbdeab176d5715ea0d3f78d11f7795f2e94f1b06e5063b06a655. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TR0010500627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b1c89d582c457a4288b36d892338719742965c791b1b116eea4a41286d5269. 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/TR0010500628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fbb5d244f7a6d5c75c12303ca9b23fbb6af2464b174b18d7ad2dfd27dd68d03. 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/TR0010500635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69c09258864815d13a89d57c39b5c8c91052a3c253380fd64dac4ed45ce330f7. 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/TR0010500637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33ecf0d90d403328c565ed3a0a9519995ccbe36bfe8dbf25b2486eaa04befd0c. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T19:48:44Z), 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/TR0010500633.
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 0xdd1e7bca3ac750029f845248d0f50726e6095bf5e385449af278494d553ed689. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/TR0010500624.