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 0x10f72c700fbfed0e83cdb03739debf39df4a1176b8b9809b0bb3d27899d7862c. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eb5f212e-851d-46ee-a119-af8b47b71a0f.json and https://artists.proofprofile.net/proofs/artist/eb5f212e-851d-46ee-a119-af8b47b71a0f.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 0xb27fa73b6ba9e17b530c30538867c494e671bb876ea9603f7e27a62ec8e2c528. 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/JPW251800117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x514bd3e1ff486d0e67c0207e56bb67ad5157b7f0a72d70a57dcf0f3aab66dbe4. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T10:53:13Z), 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/JPW251800078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f98a11ce836dfdee664a886a8643a4f19fb47e18a9c1df387d91898516577f8. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/JPW251800063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd334f5a198902d9c9bc741373b32171118870971cfd65881a54444429f3c10a4. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T04:54:40Z), 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/JPW251800066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14158bf73e58d3479b10008f03542ca1d80333523385ae030df9d7fef8e1ac7c. 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/JPW251800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1548898ec3143de31f37e075f3a4b9fcfc5c7f85f169fcd85a69bff23bd02714. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/JPW251800013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x877b94f7805c256f76cbd97a8190a2c0d580f581779cd08a03b4ff087855ea6b. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T10:24:04Z), 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/JPW251800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c0293f1c12bc3d7061b3f7361802d540f55d59062c403ada77a56c35c6d4ae3. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/JPW251800020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a21fb365a7643d934843e466b6d9154f0648fe4f74f7b2c71632bae1f563c96. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/JPW251800021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf39ccc0d976241e710a379362b7a24d79b743d22085e4138a5678beaf571b51. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/JPW251800023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec058314934c585ad200e47c7ffdc93a9afdf475b9a5b4484c8fdcc8939b16de. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T14:04:15Z), 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/JPW251800033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa65d31c418607619459b65d50a8e35d3b2c02410a6c2a399a3023851b5f2d2d7. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:41:00Z), 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/JPW251800040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b5cbcf3a0fd4bb9213c115b5b0fcdd1b453ab144da1f2a83ab2f700e2584782. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/JPW251800045.
HARUNIRE - Soundscape from the Spirit Forest-
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf232ddb2e2fb74781b7b2cf392205cbee64fd84848269c3d4f76b47df11e2418. 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/JPW251800080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38687c2dee2d75c1dfb1693f084ffff2e977c418dd439a338efdf98dad8c339e. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:59:27Z), 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/JPW251800111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb27fa73b6ba9e17b530c30538867c494e671bb876ea9603f7e27a62ec8e2c528. 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/JPW251800117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2db696fa995537ca38b2c3bae5d94e39f18c53778c2ceff3cbf308335d41f5db. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/JPW251800093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x445cf79523b65dc70c7b3e1cd039c756040fb6fcd4d7567cc67f6fc25a67afaf. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:27:16Z), 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/JPW251800102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x700bcaf8fb7f6f32cef87bfb7931711f7b0ca14511659410a61a2e4b037c5de1. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T01:54:52Z), 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/JPW251800050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ad05e83e67d925d5733b91565a55e0dc5b781226db08aa285538811f4301063. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:26:10Z), 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/JPW252000033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb1cb9461a9d519c2f090f31d5e6154c05b3531b8236119658ff1923b427eb25. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/JPW252000034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3c8393f0738a0df24e6fde52df6ca08fa1dfa2a0dfb503c56a94e7621e5eb55. 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/JPW252000036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70a1b13e1d2c15be40ba45600180b80f54d86c8a3039af1f16f1a8e17fb1456c. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/TWC012110931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2ef60dc991457444e14fbe591d9456a748a00350bbd389d3d562c721f0e322a. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:51:30Z), 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/TWC012110951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f6219275abd37ba59a9bd8c992354cd0048ff51f052c7516d9b376e90569686. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:50:25Z), 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/TWC012110971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfefbda4403b6a2f7bd9ac90bea5d17b33e64ac04b35af18a107d811ec45c86db. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/JPW252400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f8ea52f7b1cbe7d6f28acd43df6e15ef392bcdea52fdefc79c50bcddddbfae7. 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/TWC012411061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5606eb7e5739a7dba977a7732f3ad780b692fd059b86b43ccc6cdcbf78b3a5cd. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/TWC012411071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d9efbc54c31332023749117355b53c60abb06189c1db718e19fd44b38ebca51. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/TWC012411081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20fc0cdd01b32780cb8ecb085e400a53d94cea360a03b74c757cc04c0babc2e8. 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/TWC012411091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19854c7411e1fcd0f0ff48473cdbfba308280ce8d6699ee8cc91947ceaf7e27b. 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/TWC012411101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x853c7da83cbe9a4f821fe19d4fb39a1c44970d23502d52f287078979e43db1c1. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:21:50Z), 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/TWC012411111.