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 0xa7a353dc25fb1c6b263c88b3d90a659ac4898ab33df318769a5b75c92ca8a13b. 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/8a877a95-5cbf-46f9-8a44-1dafce1830db.json and https://artists.proofprofile.net/proofs/artist/8a877a95-5cbf-46f9-8a44-1dafce1830db.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 0xc7c91b1926e7b6564bb2a419df6d3df8750d9863186fdb4c72e779018a530d47. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/SE3OH1740020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25de218ec8de342548326d5d8fc2d03530100ee3d7c822e405d3a506f0280c9a. 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/UK34N1800028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdf6ffe9c29d393a60d4b047e963e9f4084674d7d01bd370c16928213c837ea0. 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/UK34N1800029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc89395c16a4325355b955f614b78bf37c7c2049db79aa50e5fe7a40382e46c. 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/UK34N1800030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x988ae0817740b4d1f20203e9e72359e20bb5ba22d42bb72e8fd083bdb9cd6877. 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/UK34N1800031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b57b5b6dbf6fad2ed14599c9e8aa6c6b840354b69707ef675482f634a2d9d64. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZ5FN1964554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54213a85c10c5afb8e73f891bcc95aefecc9528b12c92ab7609d2bf0a0d15221. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZ5FN1964563.
A.I. Rising (Opening Title / X-COAST Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0733d222c6f4e8438a6da00f21117cfbe0b9acfe0b34a8c8234d6c5e42ad805. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/GBJX31945001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc85c0d7f0659e26f1b8eeb0713b54ac143cc32dfba1706945a3149784e4e3d6c. 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/UK34N1800340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f06f8495babd1aef24a1bdec7fb882855d950381297fd0b9bc90b4310ac4fd2. 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/UK34N1800341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ec9cc91b701274bbf8ba4e7b920fcdaa6228c56aaa550eda700d36b41b28bb0. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/GBJX32164006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3e7f2299f7d167182ec139ab86e2f0cb59a824a0631ec4a2c5f34d2a0c702ad. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/GBJX32245002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3e7f2299f7d167182ec139ab86e2f0cb59a824a0631ec4a2c5f34d2a0c702ad. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:45:38Z), 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/GBJX32245002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5ac39dd83cdcce5919b93297a0cd5f18fc5f6c7a77b39cddb788c3da7e831e0. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/GBJX32245003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb63790915e8ac1d799129fbe340e0057283032d738f19db8aba02cfe8125af40. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:08:59Z), 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/GBJX32245004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07813098338a7be3bd54ac4725513b779722a9bd27bc81715ec41ed065b72837. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USZXT2250400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ee028901d46f4e1ef8c0964bab058e5625b2cde6efa90f1f049d78e7001ef63. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/USZXT2250083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8227a31ff145d1b6d57adb73118b1e9b954cf94e2c26450838051118a439ee20. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GBJX32245009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x768dd7545380e5fbe0d017c2b7c0880f389162a529ed8b2d17870108ed14dd3c. Chain 2 (Bitcoin): anchored in block 958417 (2026-07-17T12:56:50Z), 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/GBQGW2400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ee24d98756edc21b21983a93912d3ff672c9acc0727ab6f48a324a478ac0ea5. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QMDA62497543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeae03f6371eddb6851ba433c124c446d1362d9a05173a726d1e495ff681e123. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/QMDA62497545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bb9317f0143c1a4ed28cf7d9977e7372fab98d2a8e00861adf0ff6cb458b1bd. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:29:31Z), 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/QMDA62497546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18cfe773b96848cfb682853e0072942de547be06e758ed6a11e87ea42f33457e. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QMDA62497547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78f1ec5a124f264a78ed7d882c77e842bfa1ee5883a5f3625a1ecbb13c2deb1e. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QMDA62497549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe40753f8bffbeebb511507822d205396faba15adc67f5979c54b4fc46dbddb81. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/QMDA62497550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x382c1139c132565991720a1af6a1614ce1d642ba5d2e781d387ecacd88d7a2be. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QMDA62497551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeae03f6371eddb6851ba433c124c446d1362d9a05173a726d1e495ff681e123. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/QMDA62497545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78f1ec5a124f264a78ed7d882c77e842bfa1ee5883a5f3625a1ecbb13c2deb1e. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QMDA62497549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe40753f8bffbeebb511507822d205396faba15adc67f5979c54b4fc46dbddb81. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/QMDA62497550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a6d9c576a322e50dd58af5843ca6c8dd1a1583102d23461b0b41bcfd07eb46a. 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/CBAUX2302303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad23a0cc1b3d69cf3dbb8f552f67e9717bac88cd201dc5c1dc8bce62858be80f. 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/USZ4V2300236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf83b4f28ecae8c5d8d8dc9af33db267d6029244ff1e0dbfa847bed33b3b9be42. 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/GBMVH2400190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8227a31ff145d1b6d57adb73118b1e9b954cf94e2c26450838051118a439ee20. 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/GBJX32245009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4251153ef6cfea7bc816441f0ada54493b19727bbb9a80610280b06e9de7989. 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/QM6N22409200.