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 0xfda44b7cabd8a4ddc3c3cc4c6c78e957985345fae3710cd06d66459d7bbaa82c. 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/b085e48a-70cf-467c-9e00-079a0243fed7.json and https://artists.proofprofile.net/proofs/artist/b085e48a-70cf-467c-9e00-079a0243fed7.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 0x4e003901617361f540d573f882f8733897a880b1620a9341726895f2b5e9c7fd. 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/UKEX32116293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa9fc67f675ee51075253b69e93c5ae6d349605184ef50104a9c1982481c8b49. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/UKEX32116277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd69d7b1e2e024c864daf6ea4a38421d7ae3f433b48f19693e90758851f54029d. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-22T01:10:16Z), 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/UKEX32116278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8fc92852164625af7adf1a728837d957cbcfb23662727f78f25170cf45097ee. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-22T00:53:47Z), 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/UKEX32116281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82a57912baa97763ffb1197b5cb8c7d10cbef0d413cacceccf0b42416ad95678. 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/RUA1D2129962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62816bb064f22d134055ef15ab3a5d2eae353a35e77e7ff395de4603cd7a0200. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T14:01:13Z), 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/RUA1D2129963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb814836685f3a434484c30196534c9f1649146b11b28140283a20be82c74bddf. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T18:56:52Z), 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/UKEX32120628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d1bb9cb6c9d3975537a1d5f2011fd0a9fa0d6266a7bea395b08775965af8759. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/RUA1D2129970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb031462496e507f7046512281c717446f58b7b83556f57ece51ac1055e4a14c8. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/RUA1D2156319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb031462496e507f7046512281c717446f58b7b83556f57ece51ac1055e4a14c8. 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/RUA1D2156319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37face63868add4309f6fcdc4f921282d68d8832f71c77d6bf7ab0a4e8981854. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/FR10S2220287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3014fc6e431ded289597824d04d018b5a1a1b03bbba9873808dda3233aae2b7. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T21:41:44Z), 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/FRX202221600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ec753cd43c4d8092b7b5c8cd84d29015fe45732b4b46ad1c456b69e2ff59304. 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/FR10S2374632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37face63868add4309f6fcdc4f921282d68d8832f71c77d6bf7ab0a4e8981854. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/FR10S2220287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a46312cd34e65b4d39a56371f4ae376d963b74289018e3f00893c44c505e03b. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/FR10S2374633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97d2dbd2f7bdad7a333b1e22447cc2deef3f7dcce814d03813b0a394314617c3. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T01:00:54Z), 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/FR10S2374635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45ee0ffcb6c5362aa9c14af963c6dd52901dd6d41df102282813aa8ec81c5113. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:23:35Z), 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/FRX762297262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbba0d27f41391362bad6a85ba54569f5e77a8137206ddc83166e90db68840e83. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T11:31:39Z), 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/FR10S2374637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d7a5964b3ea026871e8437e9f889fa1ab3ea5734e775e0f928a2c94db83512d. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/FR10S2374638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cac2daaee94240bc1bd108cd7aa1306fa7d117fd78d3a223aeaeda38ecc0ba4. 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/FR10S2374639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a24c64c128f9faf72c7bbdfd8c3f3c062eba46e96b439e09a9c227be4b29d89. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T20:09:57Z), 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/RUA1D2412912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a24c64c128f9faf72c7bbdfd8c3f3c062eba46e96b439e09a9c227be4b29d89. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:38:34Z), 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/RUA1D2412912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e83d7a2820827bf7c00ead2037f44b3d667551e55c4e5190e01471495e6139d. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/RUA1D2469690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e83d7a2820827bf7c00ead2037f44b3d667551e55c4e5190e01471495e6139d. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:47:47Z), 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/RUA1D2469690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2bd985ba252fab4bbdcdc800ff7e375f6cdefb088a97db5699edfccd1b6b2fe. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/RUA1D2205418.