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 0x1c5692e008c65c4b51bce467859049fd3897c59fea7589c1d62ffa9adcf85437. 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/e47cdc4b-b36d-42b5-b83f-b28cc3b78dd4.json and https://artists.proofprofile.net/proofs/artist/e47cdc4b-b36d-42b5-b83f-b28cc3b78dd4.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 0x9f9fc4e196888c6b8ea014578d304be61efaac8a49772d742ffab6df9e1c0637. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ITC751000017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfccfeff9072e7f094c904b5498acbf642ec42a52eff042c0e73ec5f193028b36. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:40:23Z), 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/ITC751000005.
La leva calcistica della classe '68 - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e9ca83f42b2ceee33c2af25dff09aa0cfd870f062fa36d2d89f7beeb8b09c9c. 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/ITC751000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd426e8158795cad9cd06fa743dc4d916c3d614d0f95f4c8a3d4ff7fbd255b1f. 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/ITC751000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6d239c543d58459e739bc349d2c824aaca178a27caa982511d98d9eabb85955. 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/ITC751000021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32f9a7b8ce0bdcb7e5507b7d614302ee55cd43e30b55031d6daaa0420e4cee20. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/ITC751000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x429a2dfa66393c293ef6c133176e167ce5347777dfad528c41330371ebbcc1c1. 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/ITC751000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x247d5908eb8b1b51780ebe0f5388f661e50fc8c34167adbeae251a09b5e120ed. 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/ITC751000023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac6732b02dd7b26258f5ba51913d0021c9553872c7b49e5af6d45246b194c53a. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/ITC751000024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ffe5817c49b3475a29639da5a7fab864943c2ee1bbb8064ed57ba650cda0545. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ITC751000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46c907c8e8420ae318f279089eaadfa194baf015e4357e25c4caae98eef476ae. 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/ITC751000025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1c3fda77d25848b3f439a0b46ff4743c02cc51650b449beabc390257cf87926. 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/ITC751000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f3b1446a45a6e3d25d752f66b10cef0b464ced687b4d210ba75c00c5ef823a1. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/ITC751000026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4967b32994e4ea4bd664418a8f2b721139b4dc73898a91608d299743e94b0da5. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/ITC751000027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7833208b820a170a7822c12fb6582daa0008a49234346054d9f19b457e9175c2. 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/ITC751000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42768bf447e051177a940a65d5abccc206ac517eb644447e623947426a792a30. Chain 2 (Bitcoin): anchored in block 958572 (2026-07-18T15:47:37Z), 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/ITC751000028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54f707f57683badcf93df1aea57e04a2c4a6447e4bdffe93fe074df2fdd270dc. 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/ITC751000030.