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 0xe325b56ef662f5d258001cc9c0be58588a5c4d0cfe12bf6e6e29d953df9ed3c0. 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/d5944682-f86c-44d6-afcb-41a4823d6e02.json and https://artists.proofprofile.net/proofs/artist/d5944682-f86c-44d6-afcb-41a4823d6e02.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 0xd692b1a26ff9dc705278d95607a5225b96a31ceadd7bc954a39fc8b96d4cdedc. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCADA1701317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe076dbd6e1e950f03912023f801daa791113eb6580c0df95f92fb7d87baee597. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCADA1701325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x488c9f358ee010131cec23eae74c4bdd0139d826925d554216e668749ba4acd1. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TCADA1701339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x331f33443a41d7c05f0a76e93c7d4ef35a3b1f95b80210376a0a2392ed68a9e0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCADA1701347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd7ad70ebe1a32c6214d154eb4290cefca719b8325d6652a9c4abfbacdf8a887. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TCADA1701363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d30ffc1e8cc003e9a3121212833048417e2d556bc3a3d55cc48163aa566c5b5. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/TCADA1701365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x701cadd52026e1c97632afe9f8b1ecff8e2ba7a69684beebafb1d34190b07f13. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TCADA1701370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x446015cfd1fb31d04aa62be480377283e6ab8c96a7694d5ff51ec733da211c60. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TCADA1701375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x915996909a10f9e16274e28896c3aa750f1f2385dd44ad9e56a903f3e6d62164. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TCADA1701376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xece3600546dd76c371dd9397b8c2c79a2e25763b0c1a8f988e3b1e545e371789. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCADA1701379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72c54b12259a368ad88ab95b481c80605b6bd215cbb13f9c220eae573e9e6567. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCADA1701380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c266ed40b3ab3981f477093a8a3a3a56530903264292bf251b6acd187b18b90. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCADA1701382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2306c1539dde0bb4d3c1617cd85ab37f4f83f2b8b9e24710794f4e46fb2adf57. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCADA1701384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb39b5f4de502a6e062aa473391eb37d2cb616b5cf90341e38ee23393f947355a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QMT7P1300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x399fb224cd23eef221a77ee9ec85612460f7318264c4543d717c29edc0269dc0. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QMT7P1300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc57c2d30158550d09b9857f883b5228b941a92f6ddc0bcabd2407590bb7fa0b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QMT7P1300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a3d8e00536d1cecd1d0718b737a9e7b3bf1446cc9ff16b809fa83509b920e40. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QMT7P1300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc19519a4a350c58c8172ae64fc50f6ba0dd8bc1a7d56bc771fa7c644beb21cb5. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QMT7P1300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94af30b0ea1671cc6c5856e5e81f06f4838efd9fbd72eff59d32956c3a0290fb. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QMT7P1300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3764b605b1acf1796b17d49ed3b3c31ce6d7ab2f4bf2b6504b78ac20c43f509a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QMT7P1600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9303f96640c2a838a5532b5e220ccd98be41ea515293b7554d3a9be915ff8720. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QMT7P1400001.