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 0x7cc84a57bc64557220c38b96bf4bbbdcb72db1b8d6bb66a8a76893ad7360b717. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/03bacc82-6553-47b8-af9e-721afcda5939.json and https://artists.proofprofile.net/proofs/artist/03bacc82-6553-47b8-af9e-721afcda5939.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Out Of Time (feat. Priscilla K) [Remixes]
Out Of Time (feat. Priscilla K) - Dj Vitoto Remix
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 0xcd51b5f020e454dedb6b877306dd80c36fc59305f44457cd3e7f70ee707a5978. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/USUYG1545429.
Out Of Time (feat. Priscilla K) - Breyth Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96dcb93e340a9ad674fbf1460e001ac48e05b198e48babb744f1ee2b7cd5ab78. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/USUYG1545430.
Out Of Time (feat. Priscilla K) - Villosoul Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ae2e0764dffd2fd5d78dec371a780354eb0806c2200c4a04c0db1527141aefa. 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/USUYG1545431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e1fe23d6b325e90f44e392fb60ba09697768d87de86802610ee5498b073dc63. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/USUYG1530775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x856808613a5020176785b680d461d51459f005b730be957f8b90f42e012611c4. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/QZDA82474698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76f767be4f1139a7d2f7e473884db962ebe8fa78a08ffdaa75c97c9303327605. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZDA82474699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3e59fef7019fb4a20f3bc3faff541b24d882d00a53be7140b66d9e6bd55c0e3. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QZDA82474700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccfb44ea3ad2899539f08cfdc4881c0fbf586251a8b69ea583fade70208afe32. 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/QZDA82474701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55a527f47c16ae891d3578ba0754c4d0ada1cc94ef08bdeef66f37ec70a98afd. 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/QZDA82474702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4a7fdbfe253503c3fc7580651e4b3ecf42c41fdf679ed8008994b9dc14106e2. 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/QZFZ62446578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb66ced51fb2d4c5bcf10ee19f8e0e8c6b17206f43856bd600b6499ac0901d17. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/GBKQU2387102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9d292ef92b2f5d8199028c8ce13d16df0cb730a9bb670544c85dd9817b8c1ed. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/ZAL6V2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9b1e7ead0ee93b130c32e0958988c6577717a09c9df6df10d122460ac06b9df. 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/ZAL6V2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cb7c52a2a9de932912b058d3f4a18d3a9094406cc91cdfe7fb132f53ecc8758. 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/ZAL6V2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6af069a648364939a2456488abef80177cdc9d462431167c1b657f5c482d17aa. 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/ZAL6V2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5096af26df64e3df3557bf5ad2d04862f0d60f765ab0183460c35d82f592defd. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/ZAL6V2200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21411f2da0d6d76499663a239111322b90700ba6964e39f02ed4a7ba4aacf9f5. 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/ZAL6V2200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bf2c2b52e0f5e722ba2d22f500ddbd929bc035aac5ce8e9897fb82685d551d6. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ZAL6V2000053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x043699a0dc303d15ff296b6bd512ccbdb6d2fd1e85fb0f986e4f361802c2d0aa. 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/ZAL6V2200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18fe696a52f008f18a97be54e8334abb4d9590b877883d235ab72d0e5d16f069. 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/ZAL6V2200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x158d41542369d48e2024c528661df0009d78840db1f9812a6c291d9e2d610004. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/ZAL6V2200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecc78b30ad5152fc97d221bb7553fe780e873bce73910a88ca6b7e8c2df26d6d. 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/ZAL6V2200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe418c2afde6cbbe3646e08748bc4932d4568e444d15dd8473fcbaa0c52948620. 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/ZAL6V2200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2fb8deb0e60134fa62bcf0324094289c52b303a8ac8ba7e6b02b026549bf2ee. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/ZAL6V2200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a07be3cbd2b2433556f35935aa092af334728fec75e805a8a7a2eb41bdbdd86. 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/ZAL6V2200015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ace073818c6ffc4fcf312237ba64c8ee6d8a5dce0f42a6d373f94109e1f9319. 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/ZAL6V2200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0fc32233438ad11f442aad705195925e92a4d682b846245662a63ab6d09fd51. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/ZAL6V2200017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aee7ffab62b64f430fd9ff5b179a9c32b12424a22b25ce44c0f471be78ddefd. 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/ZAL6V2200018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01501bde68788f5ef8fb46604114edaf524a40bc4d45955dd4c1f69eea6089f2. 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/ZAL6V2200019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57f1ee8120868269c06bde222b152551512a581ffcb18e7f201c110777e9f8c3. 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/QZTBA2258608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a351ca97c8a9d0c5a79f29a7652c9542f7bbf15dde0fb5677b97d9cbc422179. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DEH742171659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36e3b946c7d05096c24fbe45fca03558e407f31a7797dd7c7e17e1a7feeb733a. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/GBLFP2266001.