1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x45f13fc08dbf1628d77e60be5d74aa06c6768235aa5f85fa2da358ea722f20d5. 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/34de806b-b850-473b-8554-b4084274fbd4.json and https://artists.proofprofile.net/proofs/artist/34de806b-b850-473b-8554-b4084274fbd4.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 → block OTSBitcoinBlock must exist at that height 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 0x8dfd1355aaf863d144f9228bb8ce8fe84dfa99faf8a96f56043ccb5afe95696f. 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/FR6V82042266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x510f96f8cf229fe9f6edcb8f4cd8d0727e4a2b7ff623da521850716765c8fd2d. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/FR6V82042269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10459cea945886b61aa76a98f1de3a236e3f471af055a57ab3b5dadd7db1e1e2. Chain 2 (Bitcoin): anchored in block 957685 (2026-07-12T09:26:00Z), 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/FR6V82042270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb06833431ae7353ae8de22f40d2018264e2bf199838ea354f6f1d784d7da1a24. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/FR6V82042271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6ab3fc8a8432a33265259b2143cbc005a285e95bd82f6d7556d39750dc694cc. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/FR6V82042273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f891ca78350b874e70b134f98f0e3be8e6edae70ecd43df681013c4fa86ac97. 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/FR6V82042274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa48773c99351adce08bb5ee53980d9da679e66f42a2a63346cb42435d7179bae. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/FR6V82042275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaaa22ee6916c37eda37c5d06ab912beeb419230a4d204156e787cf70391495a. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:48:08Z), 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/EGA252008197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa9f4255d2fbb4cfbe6ad3b2f6d463a50fa67e460e8ac04be8849f5468351bc2. Chain 2 (Bitcoin): anchored in block 957699 (2026-07-12T11:51:06Z), 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/EGA252008201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe23737fdede1d5b810a137305edf48a8dc9fc6d38bde620e619b53efdcf7557a. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/EGA0H1501077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f0b7996c43e9a57049ffb22feea495cfb14da653db22140fea8764ef740058d. 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/EGA0H1500512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b17ee3a4c25f3aac558b221c636842e33673f9b3b813e81a1a1971b4571e15d. 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/EGA0H1500505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x732d22644fb10139e58c4b6fdb7f237c709b28e8510f188f3475dbe135ea9b84. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/EGA0H1500513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe23737fdede1d5b810a137305edf48a8dc9fc6d38bde620e619b53efdcf7557a. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/EGA0H1501077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f0b7996c43e9a57049ffb22feea495cfb14da653db22140fea8764ef740058d. 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/EGA0H1500512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b17ee3a4c25f3aac558b221c636842e33673f9b3b813e81a1a1971b4571e15d. 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/EGA0H1500505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57532268622d2a3b9ed1d708991793d8bcee9ff33cc07c34354d01799fa52c7d. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TCACE1545261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc202b82b0c38ec59d3ca6b86ab6a7cd7c3f1e2c5a9a870ea59fd91e953df47eb. 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/EGA0H1500043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf962d995e54d9febf6c37a7efe60c0e7ba7d06307551ca498dd8dbc5f4cd8f4a. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/EGA0H1502269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x979cf235abeee3fd6f393b448054c76972cbdda27a0984d8aa10c4527aaea986. 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/EGA1K1843718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x746b8736375a3093a93747e4ec0e2f645d59b880f3214e852a7d4bcc46cafcc0. 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/EGA252400541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a3924dca2ea502abeb9bf3d47f29e5ac515a3e9cdd237f3133c8388f8f8b86. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/FRX762583334.