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 0x8df3fe152855a5aab2e8a6b787cc0462f18eac163833d9dc966fe7ebcf6e0099. Chain 2 (Bitcoin): anchored in block 953717 (2026-06-15T01:05:33Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/873dc25f-dd9f-4f65-ba02-671b2d9db818.json and https://artists.proofprofile.net/proofs/artist/873dc25f-dd9f-4f65-ba02-671b2d9db818.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 0xa5fd02330085d103e66eeeb7bb5f6ff36fa7aa4ba70787a650b6851997d23684. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:43:27Z), 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/GBMA22456075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf85f9492cc0075f254b3ca3cac5e849dbeb1fa41ab785899facae0bff6f1a0c3. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:42:44Z), 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/GBMA22476229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x024744ca31f84e1f81529b207a9371a1e114cddca5aedff271c58f9c80cfe8cc. 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/GBMA22475037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b8961fd418c7949f2a192b848fd262393bfd51bdd4646385ba62a66261cc8cc. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GBMA22397456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x736cd9eb1c8b2fa853efc8a9f6b6dc25e725a24bd84d4f55ad3758581aee7b90. 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/GX53U2314927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x548d48a88534a6078c97ed0219517ada79701a22167fd396fcd7ad15d48fd8d9. 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/GX53U2382129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea98ae6e8d712f7b2e2d47d91c51803e72c9ce8829525571c2b409adf4d87ec5. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/GX53U2421137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9b59368014ab1b6970039b6be8c58775737dd9864929f2021481859a1161f28. 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/GXF9Q2411330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06095bf522cce9f7e7127c70b0821ce4c07c1e25ef2ec44de52632dacb523688. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GXF9Q2480028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a8a4dd81e9cdeb68ecace673655d90dd06c6f3c87f5550e2e453ff317d6f9f8. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GXF9Q2485015.
I Don't Stand a Ghost of a Chance with You
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b41dd265851426676fc0b527b1ac4883004e904bddd657d9c4f1ce2192e86ee. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T15:12:09Z), 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/GXF9Q2534113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cfe710daa5ac1857036a2af275a520440aac1617b2592ac8bbff18a8c91b0ca. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/UKXN22513703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1ef91051897e41b3d09e60958d9fbfe79f6b8817ddc87cfc5e12803e01f9871. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/UKXN22535331.
I'm Gonna Laugh You Right out of My Life
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac9f5b23712ae0e18175d072beae2683aac3ac920af333ba7ce820d3e6ea29fb. 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/UKXN22542258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b0e28d49a1a4795dacaba3611ae08a66b1b76393e496a8dd5aea296730e31a. 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/GX53U2547443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6da8fd16006609bbcce472bc084eb87e8e8412b2782d168e977c58c6508471d. 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/GX53U2557066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x287b47c39f7a83e396a34031268032b29c54a1f809d7ae82874d4b7470130cee. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:19:03Z), 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/GX53U2574930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6efbba865a0df6186ef02b5e5aa47b98bfe8c1aca840338650c6e91a4b300f0a. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/GXH2J2565989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1f07f3dc6dc9debfe5ac34c40fb63038b62bd588ff4f9e984ae60ad83595f11. 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/TCAJX2545182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7773a9cbeb9112950961c29fe2584b7fa129e81c936221ec22cdddacbc134fcc. 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/TCAJY2515905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf12a5ee7294b54548486b0e7e2e40e94fd0db8cbfbfab0dab5d111e9550bcea8. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/TCAKA2531200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab8be435be843837e9e5b3ce82d6135d2a5e19a6815b4b2626b2008c87d9d2c. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T10:04:35Z), 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/QT65X2504854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa779732198f7b641905790733935fa25303a346f120638073dcfd87330a721c. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QT65Y2586541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e2065a29e77c1741a8e2679178594c1fea41d1113fe9982525d03d1eb55f97. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QT6622539230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aaae0d7690e7e4468aa772b246984b84c99b593bef1a8534b82865420aac0d5. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:08:03Z), 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/GXHUT2520374.