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 0xd1bd2a5d5d14cf512451c33a83b373c8c7adeca765ffe5ae74367039e972ad3b. 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/4b682496-2113-4e29-afb8-6d8a0b5dfdfa.json and https://artists.proofprofile.net/proofs/artist/4b682496-2113-4e29-afb8-6d8a0b5dfdfa.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 0xb56a7df6c83038ee623985038b66ca3034b7a56a68c4599213ec002310e41e6b. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/ARF850900149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd07fbf21058ce2b326fcef4eabefa2185554a143dff4a4570b963c39f127a27a. 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/ARF850900154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd27c632f2b0265b18c45ed6806b19198b866c7e8b2881609d6962213c8e8eb0e. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/ARF850900155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bd43a488173baf6b77782694bff79a21c6ac609ac27437fabc6846c2051afe6. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/ARF850900156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebb9a86163df448353c1271caada1de00c2bcc04954a289445e0beaa606a35d3. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/ARF850900158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f3af4dbaa6986d590b6033265455cf5d73839c0b3b29ab77703d89076b1549. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/ARF851100127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4e2dc22240043f7e167bc806aafdcd2cc9f725c835e47815183621309ac6acd. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/ARF851100130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x134c9d96f4138b8a4fc6b9a1f03880febe669c030ce18086045f90d1ba083c34. 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/ARF851100131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee382fb99a7251bd1f79ee30a10f89d6bac2fd0616be36b706ffcd10040ee481. Chain 2 (Bitcoin): anchored in block 958819 (2026-07-20T04:08:24Z), 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/ARF851100133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ed4704ff9ebd288618535ccfbf3e5341a51b1770c108d68bf2e388eb5f004e4. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/ARF851100134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbe55fa77dcd31a3537ee34fb9119f98480466339025f9550e1886237094172b. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/ARF851100135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0ba9601e9170afa41777aa24a776beef0b4f3e823e3e9872bff420f9937b6f5. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/ARF851100136.
Can't Take My Eyes off You - Como le Digo
Can't Take My Eyes Off of You / Cómo Le Digo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e9a56706a07a1386842f8d9bdf56ca1af1063959924af3692208dd75c8b502. 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/ARF471200101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2adffd91e2d95833087547082230b4b67f712640b89e9d0030bf950767ee091f. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/ARF851400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0569b89b105d9aa30fa8f2d3cad17484b5778f95b327c89773cbb1bbcac250f7. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/ARF851400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x987bc13506dd6f332bf6a390ac03c9e2a773fb20df31f97de6088a88c7667232. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ARF851400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9a6ced1f05363fb60cdc86694dc55501392ec5ac2878b4466d61b3b74952b29. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/ARF851400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a4e7b7ed3b37a2b2d01d6bc02313e5d384ab26f7b61e55ea666b4132e47b5fe. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/ARF851400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36f4c3d8f8f0f221db7e844e470b1d88ca8acefde2aed8244607856a7a865cb0. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/ARF851400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9357f2b25d6cf6c79ea9c3343e225d6206520e13502b77d664fb01b015a0a3af. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ARF851400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48d140f25901119e187e805e358a3511a5b75b02204c9db2790316297eea18a5. 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/ARF851400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb41f406bc52fa143c26ae1f81047f2b2f96859482e12ee3cd6bea053c5a3d0f5. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/ARF471600208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8daad93b5ec0ea8c4fb19d7817b78704cd684a7f0fe7d6263cdf51de38988563. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/ARF471700081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x990229949b4cd9f420e6b92c6df0791b287193f7ad1111b550e434c7ef68bb52. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/ARF471700082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f75fb55cb8d0c194a7addf2cd0b3420ab3712d8abd81dd196018714132138c3. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T13:27:11Z), 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/ARF471700084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a797bedf0e1da3720b900ebce682ccfc7c03297dc91d3219fe7c9ca6811d869. 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/ARF471900126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea970bcaa5a419cccb4661938c38ec6fb31c5a37847335b4c4f84ce8c4d21c9b. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/ARF471900130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1b436accffba96f385bd7e30f88ad230b79e264fa9d6453922fa58f09e742e9. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/ARF471900096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf398b107aa85e96ec442dc3e2c5621a4c27c96dedd012d1533da6184885e27ec. Chain 2 (Bitcoin): anchored in block 958613 (2026-07-18T21:35:09Z), 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/ARF472000162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00eee4ff0326b197a834ff75cd083296cae7777f788b807e7d7c2fc5e6d0142c. 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/ARF472000165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce0bb232ae1fb2bcb4f6a0659117d7ab1dc9fb0a452a04580dcb411bfff292c7. 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/ARF472300067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb420abb84dff866d311ee7b61bf134f094b7610a2a614444124a3328dc521373. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/ARF472300091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09b452613c2ed47459af081d66759a1a313779b2e2a243c5b5884d8bc98474a5. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/ARF472400099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e9a56706a07a1386842f8d9bdf56ca1af1063959924af3692208dd75c8b502. 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/ARF471200101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a31550fbf7d1195135deaf5e470cb721cafb165f20647fc811457b8d77b53a2. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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/ARB621700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa26cc4e804df156a98bd369c4294a0ba13801db8115a9c110848fc52fb31fe1f. 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/USDXS2204047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d1c1e6793c7563c59753134f84559d9eec3fceac60a23829c30c6f37a638e2a. 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/ARF851100129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf44ed2b4494be832eafd12dd704f45983599b131c03715f904acdcf372ccdfc. Chain 2 (Bitcoin): anchored in block 960407 (2026-07-31T13:26:30Z), 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/ARF850900151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6cc537091ac629df7429ea2e1d0a5f4dde2f93a2783625095be4b599f342d32. 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/ARF850900150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65a14e19f84f176d21338c96297191b9e405d966644d20ea5ecafb138ebf5fff. 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/ARY4P2100201.