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 0x3bc0afee58ebd06c506515eaf7d2aa0e5a16eac5e268fd0c7ca05becd59119c7. 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/23bc61c5-eaeb-432d-9b03-377673300cc5.json and https://artists.proofprofile.net/proofs/artist/23bc61c5-eaeb-432d-9b03-377673300cc5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Kein Haus, kein Auto & kein Boot (Ballermann Idiot)
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 0x9055eeb8618ed1fdaba16f18352d5d8b84155b8fe5a8c51054a1d2cbf583f017. 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/DEEQ82300129.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93bf04ea19d33a67ef8cfa1ea98c4842c04afdee6307a0132ff76cd16d51a505. 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/DEEQ82300118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6a77519fa32f673c9e135d30cf9d7a5ad70e5c830704d9328b4c21d22879127. 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/DEEQ82300120.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50abb696ed3c2efe0a118d74682cd1297aaa84c43151b650d853f035ef94e6f1. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/DEEQ82300149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf6cda577d6e88dc81956460e9de05aa54b3acb511de1b3fb98b28a03944b68. 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/DEEQ82300157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6475655dabf379debceae7cbca556d030b9bd14c2e176f0547206e8ed64d9aa6. 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/DEEQ82300152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc41bea182984f1bc414a19b24f6ed51cc1527acddd63204a41036ff6a0298044. 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/DEEQ82300146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4884ac238ed34dda4f0631d479a37bcf7ef549a0be614b9a3585797e9e8ea48d. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/DEEQ82300116.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b305ed8e3922ac4043ba17f0b4fc7afa49878fbedcf5a28284d26a2c13d0a9b. 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/DEEQ82300101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93bf04ea19d33a67ef8cfa1ea98c4842c04afdee6307a0132ff76cd16d51a505. 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/DEEQ82300118.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d9d2d8bb1392fb735afd05a24fb771c3b01c698d55f723311869bbe582d7730. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/DEEQ82400030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93bf04ea19d33a67ef8cfa1ea98c4842c04afdee6307a0132ff76cd16d51a505. 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/DEEQ82300118.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98feeabd482429de673719d2687e3989c8e217d325b8443afdef9f265f96ca80. 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/DEEQ82400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf06dafcd4aaec0789e10d69a8693e583a561dd8f5bdf5021c8b8ce2aff79a0ee. 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/GBLV62411777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93654c9148c001f9cf50ab9fc43bd134f587a80e9c989eb15e28a9bcce959ae5. 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/CH7812421455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94183b168be6cb6cdcfcca5e1efad63f65ec090a934d63e3bbe080c5a9cace2a. 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/DEL942400115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61c1c36bd54cecab5522660f0f0e6611168a34194391839991aad6d72f8b5c4d. 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/DEL942400030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4637539ff3a6b20bfdd6e67ede5b24f2d47b2e9211e548fd59aaa4729969b87c. 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/GBLV62411779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x910a08b9651991729b5365f76414bef6622d4ebf719e33ac0f31797548286691. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEZC62584659.