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 0x71562c3ffd313ea8549dcb866b3e8c919e086ef0a8f06c964b72923e54c0fee0. 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/928c1980-2b51-41f5-9749-8133c4654174.json and https://artists.proofprofile.net/proofs/artist/928c1980-2b51-41f5-9749-8133c4654174.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 0xf18b3e96c084b4a697fd1377c21df59ba73b660183359d06883f18cb712821c9. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/ATAH61513003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4e28332393c2269033571087fe87fd869941399c2b1dc056b2552ba0465bedc. 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/ATAH61430002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x579d60a04f6b1a69a1571ec21ecaf878e91c6d95afe0c5a56d23ae4c61844e81. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/ATAH61513008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bec5d61ddb06c4be65e26f08976b62517c7444025ddeb08529dce60f30f3124. 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/ATAH61513012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb3a5a196d23285ca8e87f2074dfca87bd89552769860877fa478d14cb2adf2b. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/ATAH61513002.
Raindrops And Elephants Piranha Re:Interpretations
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8637288b53664346b66c90ef507286ce24aa9f66626ec6bfe27874fc136695fc. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/ATAH61440002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ea958eeadcd0d2ba319982bc6706ea2711a8118fa0695767d19af6ba7beff0c. 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/ATAH61440004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefed14250a55feac54d30d91de4aea61ba47049c9be6a1b1c0d6c6c91cbf97c0. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/DEL120903501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1e8703f25c54c974cf9d964e3329dd760c25f1237a6eca63d642e2a672ef6cd. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/DEL120903502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdee340b316697ad0f73bed35ef151f4b259baa07a28bc7b273ba43ea05482012. 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/DEL120903503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x353e073df80a34a4a90ab0a989975752041f5db91302728ac3d7682c62ee2d89. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/DEL120903504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x780085ac0031ac8ab51eb0ea786f024adfb851b9cb47e1d45c380cf1ffc0152b. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/DEL120903505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bbd0f0ef827f5ffdac446623398d733d69833065836b08499e686d08ddaf33e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEL120903506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33b9a07bd88d8304438a8648f767d9d54d24078889362e6b2367bb58529bbc99. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEL120903507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f492e040f7fb40e3a23695cf7dcd3e48688e3afaf6ad46a5969f44ee29a27e4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEL120903508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aec922761a2a565917d8da9c052bc38d9df17408e221b8358c666db9972980c. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/DEL120903509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa479d4a7b76b9be5d48c6e1a0107a7e11a59301f245d7fecbebdbc637b758ca2. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/DEL120903510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b9774ebeb0ade28be03cda2fedd61bde1226b48dc3fb70b17e9b63f686b2926. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/DEL120903511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e7732512c292be507f7fe5524ddabb2aed03a14d2ad56ed21d9aafa36f9730a. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/DEL120903512.
The Chocolate Butterfly - Radio Edit (Digital Bonus Track)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd67ffbd888350278f82ccddf0bf6cbcda2d0860b777408064ed9b49eed3bbf2e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEL120903513.
Zot O Zot (Instrumental) - [dunkelbunt] Remix (Digital Bonus Track)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1998c8973d7cde159618898bc4fa03964abbcf1fd63b0e613bd5344c22cdb75e. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/DEL120903514.
Cinnamon Girl - Club Edit (Digital Bonus Track)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e1341cbb9d658aa2e356f3557957606ae0a89fc165996b4ed7c8198562341cb. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEL120903515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2c339ca6585aab369a8dbc6badd5f5bcea16e61b770e7d103bafe473adbb743. 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/ATAH61420001.
Šljivovica - [dunkelbunt] Remix Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7836422589a2cf1b5025424369f8bcf53bde388a8ba0c00400a0f3c8d5bf1fa6. Chain 2 (Bitcoin): anchored in block 958369 (2026-07-17T05:20:29Z), 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/ATAH61420008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1de8843ac4533cca5fd07e01ab1c16a324779d1f350b45989e615d16d3ffc4a7. 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/ATAH61510001.
Chocolate Butterfly (Stefano Miele Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00dd0bf5efbe5bd7a98388cc22a022a846deae67c77d356aad07098483b78778. 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/ATAH62050002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x242fed8aac940a371333c821fc651a9cafc83b3d2c0e08093b59ddcbe046e72c. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/ATAH62120001.
Ich grill mit dir die Abendsonne (Zorba the Buddha Edit)
Dunkelbunt Social Club (Patchworx & Remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5cc5e3332b784facd967d456377100b738850888c593492128c746bd79f827b. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/ATAH62024001.
Cinnamon Girl (feat. Boban I Marko Marcovic Orkestar) [Radio Edit]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbbe2ede58a44e7a4e8acce0c673b11a91bb18cbf944c2ba2a815e02e718db62. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEL121003506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd093252750947ddd79f5c11033016fba484839fdcbbd788d331946c36d210df7. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/DEZ651703772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5073096dab25cf038bde3cf506a877d247b8c751c64bd934f56764e39bb2f710. 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/DEAM20800029.