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 0xa7bd5a11a2adaf74e88ebaa4d83f30bcc5a6ae80de25a7b868c019192e9ceaf4. 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/836e9d6d-edcb-435f-a074-822ba5b12305.json and https://artists.proofprofile.net/proofs/artist/836e9d6d-edcb-435f-a074-822ba5b12305.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
To Je Samo Folk'N'Roll - Poštari Opetjašu
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 0xf388d7624540e8badb325a7e18e283d7e8cddb052abb996075b10d335a65c46b. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/DEQM91201203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbe5a5bc45f1a19135a2cdede1f63501b809fddd04e952da0fa52deadd154c82. 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/DEQM91201207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91b994622f2f012b894b73c6e854961e438bd5906c5e3eca86c68c01dd953a4c. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/DEQM91201208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66af6b0ced0ab07aff450b1d07c45376e963d3292749f883f12b46ef3fdcc13d. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/DEQM91201209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51206210d25c22cc9ec6e237d8c9531a9d8c7ce6e2ac056a20d377e69fe0013f. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T07:58:45Z), 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/HRA040909757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa32d68fda9e026952214a041116d862f8b4d6511cae127f44eba79e7693e0ab6. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/HRA040910721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ac904ec11b109532ad91351b64e5a8ee2b19b44da524b806ced56648caa59b8. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/HRA040910722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3425ef06adc6fec15cc86a4e54b1f72be1cd70e80707fa1e8da8c794d9a67de. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/HRA040910723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebcef5638109db4e2271f4659974af454ec21bb94f7d69451a7e35eaf0c80ee2. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/HRA040752730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc82a74a765519e97056d65d71288cb0a724c0c51348dddfda1c31fb8fb2cd619. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:30:23Z), 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/HRA040752728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f5a0f464a6a8294099d66cec50023865dfa3ccef29deb489c2c85526c2c775f. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:04:59Z), 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/HRA040752877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34a3f48afbdf43744d122db95751161b0c8404819262ea023a701cc0404f6ba8. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/HRA048752731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16e32003c8016fe66baee58da6a68e559799f73ea5fc0165f59adeba42845e93. Chain 2 (Bitcoin): anchored in block 958681 (2026-07-19T06:14:54Z), 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/HRA040752735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe9ff0297cdbcd81a9981bed028fac50aca8a2d3bc5dcf74b9c3f56c82452022. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/HRA040752734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0f51c373842664e380f9ad2425a7abaa379541261a7bff5af11f9d539158092. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:56:25Z), 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/HRA040909755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a8287b06e3309b638d8109083e897bc5d2380c3e0a9b4ce74fa02f35c082d71. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/HRA040909758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7508931202e392927477cc1d408eac1700880e8000a55d142b93c3540e4ac904. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/HRA048709753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb02bd9f1e99c98cf073bced9fb6e6312d3c5d63a4dc7a9e3084f9a7d80eecab0. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/HRA040920731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc80b0ff91c03d5bc23f616caaa22723dcec27f1e827601e43fa26f3d334f1403. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:37:27Z), 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/HRA040920729.
To Je Samo Folk'n'roll - Poštari Opet Jašu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x651708ab11704df483846081570280c254f0630bbc717f25f6160390e9758c14. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/HRA040920732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7677ea44d5d88e238ea110c922874b82aa87782bf2ebe0edb28b78a9edc985fb. 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/HRA048610720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75842751c2b89cc62b6170556c8ff66407d7402ca2d7a2af275b3c7299a5b921. 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/HRA048610719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x399c0474365c71c41eb018c0e94ae5cdcd1424075626e3fe93694b20414e51ff. 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/HRA048709754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x632d9b88d4a6486af3b66d7adecbd75859ca629749772c9caf379c2483a7c589. 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/HRA048752729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe72595b6fc6cf2e03febed0a1567ec67c65f52fb1868848de9bcd9ec131145af. 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/DEKB72078612.