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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7c85ec4daf40014c59bc6bba7819bac6b313e6231c0a5c38ae150b58f995608. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d9d9eba5-ddfc-452c-8dc7-d06bcd3eeea2.json and https://artists.proofprofile.net/proofs/artist/d9d9eba5-ddfc-452c-8dc7-d06bcd3eeea2.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda05bfe999e0714984dae8265a9c83b9ff053a6ad89cf88f8b364ccd835e2cf. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/HUB281204184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e3d1fe6d7e9b8d0edebbe9de9bd1e3eda951852809f4da4aed46cecaffb48f0. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/HUB281204185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79b40724ea73c4060e4bafd1a525fb41cc6a32055bcf5c07742c4c678e9ad13a. 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/HUB281204193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7bf0a25fd95164d2eff912ced89360eeedfde94d18d897e9f76b427c12ce051. 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/HUB281204194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62888153c39f1e3c7e5340712825e8855a4bdb41c9c5f3bd179e91f6793e5e15. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/FR10S2535279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e7eb7a8924eac880ae971225866ab7f6b8339dcd4cc7d366d3c097c9548f626. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/FR10S2535295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45fc029db6838ed29fb6ea185fccb2224f3caaf75819cabdf71549f98920e828. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/FR10S2535280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacdfcf5eaee5c92484892f62705fc58e460b70acd754c1822c0fff3fe3f67e5d. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/FR10S2535296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcf10ae7f7553a2c6f217af2272ef1216c36238a461b6ed299ba6498c7d750b1. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR10S2535281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeec8f3ca720bfaa677e1444cc1868a0f84738e660141d45e4e8e446675c9cff0. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR10S2535282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59fcade478d2d45aec5ac08707a166cc28d4914ba87fe4a9c48b57f1dc4eb041. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/FR10S2535284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae7f18f37082b4f1d829237ff8ad379307cdb63594dca792d302cfb70fbaa116. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR10S2535300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d4fd3d1e059ac24c60867733a87a035fbbac8ee2e4bf0821ce13ac4fcc1dbc4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR10S2535285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca351935033d63286be311f9bfed3c4530d3f2a213052e231122b1bece5ab06d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR10S2535286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf03c901856c66c756e2fdc419258ed2dc1542c122d10497d1b9f84189019944. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR10S2535289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd1b04e3ddef3785a80b054cbeaffaba34f065383ad809a94ccac6c13eb86e3c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR10S2535305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40e42be637cb029300b8acaac52a20fbc74378b25c4df36488f3432be50e7b6a. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/FR10S2535291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b26167e02f5f92d890751c5d02648f2a3e5d40ff9c3a6c506e71ab2aa0da621. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/FR10S2535292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ab9613fca1c7abdf97e046960379f431cc90c90a830e2d123ffc8e7fed4ee16. 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/FR10S2535306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf31c5b51abb3421156f7e391d202b1621ffa9ba3f042310225eeafd83379a6cc. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/FR10S2535307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x539abe75324733df213fd5c95fe8810d6b1090b3f4ab1dc8248c199b4f85c810. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/FR10S2535294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfca2c282313856ecc13c3aa4937ba43120f3cb01783ffb8a8ade5141ec93da0c. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/FR10S2535308.
Fellázad A Semmibe Vett Öröklét (Összekapcsolódik a vér lüktetésével... kigyulladnak a látomások... tettek születnek... elözönlik az utcákat... az égig érnek!)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2e19c4b53abcc21f47da1a5ecae17903749c12c5b0c77255a51cee9aa0736a0. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/HUD4H2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fd27573459fcd9e6380f82746e2878907424cec17556a743838580c67caf500. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/HUD4H2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43654556c6ee2f467503c2198461886cf37a08fc4ce6c8cab1ce6d6bb2e0d656. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/HUD4H2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02bcb41886cc66fdb7d4c7b465fc93851caddad31c407bacb57d30beb4f8f29c. 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/HUD4H2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ef2e7ddcd9ecbf08c56d9d3e0ab3056510a19a470918ee443986d5a0e9dffae. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/HUD4H2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e99b0e2b45dade2c9cf29cb132315924775d230f16399dbc1ec5efc8567e3de. Chain 2 (Bitcoin): anchored in block 959018 (2026-07-21T14:12:28Z), 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/HUD4H2400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91076f59a314623657f980a9a5a0166e44495120eef8b1091941b5b09198379f. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T13:52:01Z), 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/HUD4H2400013.
Megmozdulnak A Föld Göröngyei (Live at Magyar Zene Háza 2023)