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 0xedd715cb2172b91e95dd5a825467cc32a0f1654b6d8d98b1f6e2b5b4a7d2f39b. 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/84b17982-d152-41ea-8467-c1504f59b20c.json and https://artists.proofprofile.net/proofs/artist/84b17982-d152-41ea-8467-c1504f59b20c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
D.i.d.m.z.d.g.s.h. - Das ist die Musik zu der Gangster Sex haben
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 0xeda1ea2151d97602ab8171f67071501befe2236df967d5cb005e7d8b184ffdad. 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/DEZC62103496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e47a38b628a83c0ec68b89504d06e56368f6b0b1c72d64ae844bdec8f284ba2. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/DEZC62103498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2bdabd08aa4ffe631e9f9cb2bb8cc929ce0d021dc8a62cece25a56cc4a54aed. 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/DEZC62128442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb5bbb4d588d305dbcbe53886292ca00bfbd70bfc66ed8f5e081ddd43bcf0ae0. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/DEZC62261179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96d85f2a289ec8af1f8e3dc8f4e2eefc645f849d4c4315de4e1d8b0ba0ed89f6. 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/DEZC62261180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25a2ca0bc28a7830ab6319862b277891b0de9f2debb95eb44af1dccd3c57ae73. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/DGA092322166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e4ff7c481674fb395639fe3f280af82b38953a269647c04c71121da41defc98. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DGA092322168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x700f951fc387d01e8f5f1660bfaf80ec83fbccbe323deab4c0eda99d7b9e6171. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/FRX282488123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f3d4b0fefe717e772315bf8a3b20dab305afc76c19f48ad4e25e45c94476944. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/FRX282488125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6f47d784f517f7530e76ba79d58cc5101a80378d354d96b5d92f388ef2a3755. 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/FR9Z62400649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20ba1965b5fdab914bb1cabf42ab179a3ba982031712b13ca0400311dc1fb067. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/DEZC62468581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9a0a10eb7793fdc1ebf15feef8d4cd4922130637c6dfc64d0bbfe6352a16dc4. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/FR59R2594143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f7d3019067b4320eb205ec003b6e541d00c30fb574ee2c8f7677df3426a0baf. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/FR9Z62500244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x664bac665d69fa6dac339169406dc38e696e0e77247263a72a3a42e06b00cf8c. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/DEZC62517728.