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 0xfc9bafa1982a49abf3f539433daffc3129203267e256000fec52eb536b10d630. 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/88fd39e3-ce1d-4abb-a366-15328fce5193.json and https://artists.proofprofile.net/proofs/artist/88fd39e3-ce1d-4abb-a366-15328fce5193.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 0x904208beae206ab1c1baf82cc5693df8d8a1cf7a886a36a6578bd1a526103e62. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEZ650610377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28639778ca6e2f2f62adce772465b775326ba7d2c993c74266a653ecb4c0041e. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/DEZ650610378.
Die Bastarde, die dich jetzt nach Hause bringen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ed8b87d93416036a147dfdb330cd53b1d225321f3597a1693173c1ccde8c574. 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/DEAK80300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f848976e220672e3bc5282798a78b822ffde5bafb95f05cfc3caaab39768a48. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/DEAK80300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7d6294b0041448c1f508d8b7a12d8c14eb9b4efd1f5c8889d2431c01775bd2f. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T06:41:28Z), 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/DEAK80300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54d62f1d23ad7c8b3ea87fbc5a783ac6e16a1d76e64a0e4f098a3ebf023a3098. 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/DEAK80300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64e682b3abb93861307f5389332f42f413696272d078b6bb24f9eba5e310bed3. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/DEAK80300017.
Die Bastarde, die dich jetzt nach Hause bringen EP
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00056dd638d085453c011e30df8cbe4a129b256ec58fa5134cdf94a64c58ef42. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/DEAK80500068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5e27f55cca1a97f0ca91d5ab3fe50508cc174b75c05218bb083ec63e05ca2a3. 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/DEAK80500070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8303f448a555aaaad7af6b5830b5257fbf889dd1a9cc1be2f899161917ff5784. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/DEAK80500071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x142f9d41bdb313f2928dde25e9210035c594837857092320af27118487f4f136. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/DEAK80500072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe6935e0b507b5fd8d00f3993c79f0275e2f00793e5eb20ffed61ac06032797. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEAK80500073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa306eb1e71917c8f3e50e29a859362e5d00dee50d151f3c6247cb8fa8d0ea347. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEAK80800032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08d3595b24844507080925d1827ffae3ce58ba07efdcf1959cc5dae5c90ad1f2. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/DEAK80800033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2fb9be5a8cfca77c1e64390effafd3727b2a120eabd3bfd3b7318db5b1653b4. 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/DEAK80800036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7f922de39f5c6aed5163f53de4dbed87b11a0ea9ba23d1edab8d7d117e294a2. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/DEAK80800037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x051215c6eaae519f7765d1d214117e0ae4e374feb23f33e16dae923ce3cb4d1e. 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/DEAK80800038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0163149fdff95bd54373a019a80966b0518e64086c189a7cb689485644b845f7. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/DEAK80800039.
Du bringst die Stories (Ich bring den Wein)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30377565df889fd657f379f2588707caf26b533a041d5bf5d0b569bb60f9a0b0. 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/DEAK80800040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbd60bdb4d9ecc2542364335d5894d0bac8f53b5ebaa20fb9a317dbec743c319. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/DEAK80800041.
Nichts ist so schön auf der Welt, wie betrunken traurige Musik zu hören
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2d2116a54f90dabddc9ad68a963a155b79119a7005ffac9cc36900179713530. 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/DEAK80800042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x737aa0bdb29a103658db588f912e763e8f20f66a3e043cd765939e002cbc0083. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:02:18Z), 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/DEAK80800043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6607cbdbde91531e9520102efd32499f5230d478e73ed1a804b5eb703681136e. 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/DEAK80800044.