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 0xab5570c91d805bb657598583ce6905b66e83babe4a3c4197b8a21e624ad68ad5. 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/31915ca1-a3d5-44e6-9369-fc6b07bec1bb.json and https://artists.proofprofile.net/proofs/artist/31915ca1-a3d5-44e6-9369-fc6b07bec1bb.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 0xbcc1cffa0462a9c25789bddf411392ff3f578703ddb401feb507029972c1f1dc. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/JPS801954887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcc1cffa0462a9c25789bddf411392ff3f578703ddb401feb507029972c1f1dc. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/JPS801954887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfc227c9b3fe6a14bb6365486e2241347595e1385344b76a32f795f48b26b32d. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/JPS801952653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d92665fe47c7b930c2264cb16036d331714a97342237bb879346ba3a813945d. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/JPS801957328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa77cdf213c290d1b6eb1f5788681e8f0ac8b353ae9988c430a024b9bdeaad035. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/JPS801964824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa77cdf213c290d1b6eb1f5788681e8f0ac8b353ae9988c430a024b9bdeaad035. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/JPS801964824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b0a574f3c8334763daa2492a8ccc418ab3c0adef769acc567db7d1ea34b3c54. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/JPS801965065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6503f4a8bb1c02e608f845d6c18a0bc046893fa6eb35d2d49feac5d3f5842de2. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:58:53Z), 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/JPS801965066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d92665fe47c7b930c2264cb16036d331714a97342237bb879346ba3a813945d. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/JPS801957328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02db4795634b0fd10bf8ea1d34a432ffdc0c03a1c83ef294351954d901f05fc2. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:53:07Z), 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/JPS801965073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x070c50fff85f6a1466d12ca3834d6f37bd857bbe614a6fe60d902543fe75b0ce. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/JPS801965074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91c99bb81935557c4be5199038604399b9f5202af4267ecd3cfdfa2cf0780a56. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/JPS801965076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b0a574f3c8334763daa2492a8ccc418ab3c0adef769acc567db7d1ea34b3c54. 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/JPS801965065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6503f4a8bb1c02e608f845d6c18a0bc046893fa6eb35d2d49feac5d3f5842de2. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/JPS801965066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa783665d316b742467a78d09e4966d745aa9c80008cbc1174bbab5e178d25590. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/JPS801965067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcc1cffa0462a9c25789bddf411392ff3f578703ddb401feb507029972c1f1dc. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/JPS801954887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa77cdf213c290d1b6eb1f5788681e8f0ac8b353ae9988c430a024b9bdeaad035. 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/JPS801964824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f3b50d7f49943bf69934d546a24a4a01ccc87e1733fe6871f4fab26f190ffa6. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/JPS801965070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d92665fe47c7b930c2264cb16036d331714a97342237bb879346ba3a813945d. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/JPS801957328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02db4795634b0fd10bf8ea1d34a432ffdc0c03a1c83ef294351954d901f05fc2. 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/JPS801965073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x070c50fff85f6a1466d12ca3834d6f37bd857bbe614a6fe60d902543fe75b0ce. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/JPS801965074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb75dd245f8d1bb0d4728d2785813caa6d3ec1fc0c3730b7ae617d35ddfd8f10e. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/JPS801965075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91c99bb81935557c4be5199038604399b9f5202af4267ecd3cfdfa2cf0780a56. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/JPS801965076.
Perfect Storm (feat. TAEHYUN of TOMORROW X TOGETHER)