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 0xd24d3e647265cbf9b000b888ea3dc9768eff27e7d7ca679df200a69c01fef7ac. 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/ce49b90b-b005-468a-9d1e-05162ef7eac8.json and https://artists.proofprofile.net/proofs/artist/ce49b90b-b005-468a-9d1e-05162ef7eac8.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 0x9599b21d8a8164f67e03f51bfb20e73763eb36c308f800cff4790bd94dd23993. 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/JPI101801638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x744ad783c78c8ce6abd31e5b575622bd0d2fcc8dd1e4f6e0dcfd0c61bfece871. 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/JPI101801639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x253daa0a8abb665318a080e57f2221abad7288a8c2148aa774724d520af1e8c1. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T15:58:15Z), 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/JPI101900795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x253daa0a8abb665318a080e57f2221abad7288a8c2148aa774724d520af1e8c1. 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/JPI101900795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76c15e664af0a2be441178a68aa97b9e301b8fe8e78cc8727f81dcac3715947e. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/JPI102001853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc06b0a87cdc35e780f474a77efd89654bafc257d00036935057fb19fe8805fb0. 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/JPI102001856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaf4a834626639a1075f298b886bead60227946e3e98a6fd50825689fe350d10. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/JPI102000588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd18046280f0a7ec733d367a59d5f8694c575d13c9388ed4099b5b14bda9d7c05. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/JPI102001857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde2f9faa2fdeb8bbfc57193071c13275f7090d9ee52e5fedd70e4576ca3456a6. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/JPI102001858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa81369f1cda1f8878ab7da37515b613464160e53167f6b1e19bb453e4b458849. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-20T00:24:21Z), 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/JPI102001859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bfb52bbac13e77a27f54b0f555a0dfd0d0f4cadf53782c450cfeb6c50f9d288. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:44:37Z), 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/JPI102103009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6999f6eee37b3f8eac3245f0209f6220937da04e65cbcdc4959ce46926de0e13. 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/JPI102103010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05fa8dfceefda3a10333c81e06bf624148eea688e517e2d1463ea4d6213f325a. 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/JPI102103012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x806c5c2c4500088b1e0faf9f07c485547b0ad802ca2911cfc764194e308e869a. 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/JPI102200053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd83c0a38e446dca3c9da9830a11b271413113951dff9e9874f3eca264a9e569d. 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/JPI102200057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x806c5c2c4500088b1e0faf9f07c485547b0ad802ca2911cfc764194e308e869a. 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/JPI102200053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd83c0a38e446dca3c9da9830a11b271413113951dff9e9874f3eca264a9e569d. 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/JPI102200057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9276fe96e37c2315ff00e26eb3c18ccb9f6dacebc10534f404d7d0fb15de7182. 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/JPT552200122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb27594daff312f9e41d1ebeaae5213ff2b77076b1d45ba974a97fd4a30c427da. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/JPI102201301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcde27caefc760d114118bb0bc0614e9c508e51dfab799941323f4699a4790669. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T10:05:14Z), 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/JPI102201305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb27594daff312f9e41d1ebeaae5213ff2b77076b1d45ba974a97fd4a30c427da. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/JPI102201301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeac2c8fd100569a8db25509fc19477f3a1a86a7427edc51053d7865755c731a7. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/JPI102201302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x223d9be17cffc815a05c99b2ab7519c0c8e162d13189161147d39948ce82b584. 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/JPI102401250.