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 0x800c02079aad8554a2f53488c8a42112c6fe7f384a11dd11fff482958eda8a7a. 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/4c73089e-766b-46ef-9185-fc2e97775006.json and https://artists.proofprofile.net/proofs/artist/4c73089e-766b-46ef-9185-fc2e97775006.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 0x92a304300f859191c87b4a17730edfdfbc415c8620092b69005842fb62b459b0. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:03:03Z), 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/FR96X2124549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dd8981f59081a579131914e50ab60c2862797946ecaf800f2a6cbadf8128ff3. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/TCAER2064310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fda565da5c318672256f1db954a9b513bebf2ad86d8ef9306f8db19c91d7afd. 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/TCAES2096427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbabebccc37b663de270473bad1bc5317b8d588aadb80be49258b18bba6bacddb. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/TCAES2096436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf81e91a595f33d0882118ad3188f5f866751cd8b1ecd19d911f17e931e6fa4ad. 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/TCAES2096438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95fa7b0436b79201601c9e623a885c9676c22d805ae7b9a092e25178488757ff. Chain 2 (Bitcoin): anchored in block 957595 (2026-07-11T18:26:17Z), 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/TCAES2096440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf242b693ccd60913b1e158eff1e19ff1ee603288311a5c58f3bdd6f5ec0b098b. Chain 2 (Bitcoin): anchored in block 957599 (2026-07-11T19:42:17Z), 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/TCAES2096443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8884230aa6956e7b0400efe11ee7d6513db4e5f6931c73cb5c5bef8dd0fcdcc3. Chain 2 (Bitcoin): anchored in block 957599 (2026-07-11T19:42:17Z), 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/FR26V2045894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cc0157edb16fcaff186f55426ddaffe5bd0f54746efedf65e673bb07ecf4a97. 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/FR26V2045895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8197ace8fe77ad82d76464766e9c28016f9e7049fa79d9ce82f42ecef7afb8b7. 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/FR26V2045896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29947e0756fae1ed8a5cb4c776ccc46442d0f1e7a493a4aba4474c961b60901f. Chain 2 (Bitcoin): anchored in block 957599 (2026-07-11T19:42:17Z), 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/FR26V2045897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c9b8323bb547bde0edb68616f909c82e0619b690d9cbf3fa0be76c839c4f0db. 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/FR26V2045898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc816aa8c52152a833bdcefead60a638d4750a7f0bc5cb880b85254b9aaef6532. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FR26V2045899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75123307eef1acfdf51f2bcaf36aa1746f0f9d06fb393dde170b2735b9d151d2. 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/FR26V2045900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39cf00d8fbafe74662e0a60989bda80bcc40fe41170e3aa4fa422e4aaf15dca7. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FR26V2045902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68a204b796e1a6943a0d95a8336f58aa20f424ec7166b908e8e4a6dc26ea5abf. 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/FRS182161515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95cd8622bcfdc0d07c61e2976d4e71408b6342156389b19860dfbd919ba668d3. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FRS182161284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7daeeb09e17ec7de3f588bedaf816a2c627a94d98deabdc7f10817754f075bc0. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/FRS182157610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2494a7f4e097430603a515eb57158c32f25d4b6934cc635b481358dddc083517. 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/FR2X42212952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c91ddd753a2c5864e97163255efb86f7a03c5ce08789e91ec2fa0e6813bdb59. 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/FR59R2225394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8fc102c9e9271dd48540cc0ce1074164fad6ca7aae1073c6a5bb729797f3ac6. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/DGA062262263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1a105d1eedf2442e23fa041657eab06a13176d0deee39dc94bca2b90fd30313. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZN882327470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13e909c84439dd692ccf1dc24dddcad29c825685e3c5ad167e42fe01b8501c9b. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/FRX202304910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25f49a7a4040b6888cdf9126d1e74e2e6fb5aab5ff5d3dcab6aa2f4f04c7ed7b. 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/DGA072336747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a44f09960a61154608c0f51d328a5e82d8d778f4711cc02a05b1a82c06d4f4b. 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/DGA072391141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4519f653941046b4b1478d95d2a587919cf9d9d3cd448b832289f6ad7be14656. 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/DGA082384167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ba501ee09120135f372e4d93cf8f5d0fda7eb27a2687eff0adfee5e4d2f23fa. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/DGA082384173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fd8995ca8f7f18a50acb3c0a3eb0e8b6716386516d3580c5c8c99c1d059f2d9. 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/FRX872425891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x097d9d0f5eb303ed91dcf47add6423c3f976cc78a2f092b8dd10e71a2f748a14. Chain 2 (Bitcoin): anchored in block 957603 (2026-07-11T20:26:17Z), 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/DGA082474855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83a51e7e6d9d9d81ee4b3514d1d52f125f084eb80c1dd04a09c8532021348391. 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/DGA0L2452401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4387c53d6175a3cfb0e83570341606125a13d205d9303a28db73e7a8c6147001. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/FR10S2530818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5899d878a469ca1885d470fdf82db46eed271431ff07131274eea26bab568c3. Chain 2 (Bitcoin): anchored in block 957603 (2026-07-11T20:26:17Z), 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/FR10S2562077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d9745b03f17e9b7dfcd4cac439b7b080622741e7f1204e5f38bfcba66738743. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-16T01:17:19Z), 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/FR2X42568099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8edd2bf82f4cc15b1cf577a20fc9fe030b7fd24761acab7f98fb9af19fd8bb82. 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/FR59R2583653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5349972cb75481c53da70ee08bfd40c92110c1b935706be3cbc97401020f78f. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:15:44Z), 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/DGA062519869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc49588bf5a6ea0e87603c32a929ae06dc58d902f2fd707cd29d52b777fe1ebc8. 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/DGA072522474.