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 0xbe9ed897a2af44fecdea8dae557691e1bd39a0fe44b7652cf57720366823e557. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e0161fe0-eb31-4876-9110-2272d4efac95.json and https://artists.proofprofile.net/proofs/artist/e0161fe0-eb31-4876-9110-2272d4efac95.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 0x61ab0b02e6f28f12fbc45fdfb7ecce3f352067958fe3ec35f2d6fc5c7d23d152. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:42:51Z), 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/JPF551800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cbdf8f45315b84ad9d51190dd3921924b98858585a73f67b22a13be4f376114. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/JPF551900004.
キャンバス from 「FM AXIA from Galaxy Radio Station」
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x719bd4ffefe36c1ba52e627ef035ad09135d32665775d0d744835100e04e2f2b. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/JPF552000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81359ecd96875b3c2d441e4160999bf60f43ccbb6a2e4789f60c177e2222e9cd. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T10:08:20Z), 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/JPF552000066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb50a5e5646f8e70d39f17bd5f3429584526c4e5bcd8b9277c19f5a52113e26f. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/JPF552000065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x703c8adb7a7a9d04462b494fc8b271904ae459501641c71494b87db722248031. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/JPF552100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cda18230ac36b4e2d00a48250d9274a9a7780fc273838ad1e1a6f22bee385de. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/JPF552100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbff92b19d0d6fd240a94f72e262d786d73de7b77ede9366a3e51c69219b69e9b. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:35:41Z), 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/JPF552100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3b5a5a9b7398d731aee82d90e4493df615c55175c27cdaeb36be1c7feecbbf7. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/JPB602203652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd76b86338ed5258cd05cacd884dc78f265d63c1b6de9e2d9d32e7106d1643b6. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/JPB602203655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ba63b1fe7db12f8cf7bc3bc0293637a0a142636dbb2b9196f1d5502a62408db. Chain 2 (Bitcoin): anchored in block 956426 (2026-07-17T08:58:24Z), 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/JPB602203914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ae0aadf8ce9a67bdb59b2cb03166abb0d14bf3e410924e829648a9f48aebd05. Chain 2 (Bitcoin): anchored in block 956425 (2026-07-03T01:28:11Z), 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/JPB602204465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a50c872c18ff51fab36bb8d527d0782986c828c6de923c72737a20af1103f6e. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/JPB602204463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53b8ea45d951a43e0cc1907db083a4a5da67b87463802010760b6fb1db37c5bf. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:52:39Z), 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/JPB602204730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf750ac121975a7748b1c6eca597b4cc070034f1044b08ddb61ca469c7844ac5. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:32:19Z), 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/JPB602204731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4fe021ce779f89b57a50d578cfeaf03bb0aba63d3bd377c8237c22969c8bbce. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/JPB602204732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d4e662a3a5ce9647a6c1f4f1759ca33cdc40a45d250947f4b4eea55f02ba280. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/JPB602400511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75787aaaf3fc4703c2316e01ec64c7ba0b090a164b83be4860175a935367e59f. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/JPB602400564.
トウキョウ・シャンディ・ランデヴ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13fc421b12ab51169163ab506ffe7c194b2f5f40f188e1a85b93bf3444ea4279. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/JPB602400565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x094a8a84a77aa2997db06cfb46395afa96372e0fbbf0b707bdc1fa31229c60bd. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/JPB602400566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x166a77b9136fec8864d63210f7aa9ca9f1159f2e20571cf2f93fa5d87d2cda78. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:03:01Z), 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/JPB602400563.