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 0xd0bf4d474c84a1e0f659b54c14a738e22a3ea557e2633acfaae4e6b2cd6fcbad. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7c6517c8-1bbe-43d7-ad8b-a11d57edae66.json and https://artists.proofprofile.net/proofs/artist/7c6517c8-1bbe-43d7-ad8b-a11d57edae66.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 0x06e73983bdb89a19beda7ffd895e91734ec4b5dfa63af3a46555f8d3354fbefd. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEEC31200020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bd7daac91ed223ab51f61d0a20cd5d762f6fe04fd77e2923a3f10ede2e5aa29. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBCFB2000223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf12e10e878ee7cabd66515ca7d898fe9eb5cdd03b50ed3e8bde3b3644d579e42. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBCFB2000154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd909e2530991159edd41cb9ffa4bfd658647b15d0e53f23310cbd625fff06f27. 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/USA2P2209118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fabe52b9df2e55d8bf5639abc3c141079604dea4053320562278c3dc8759412. 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/DEU672002172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15fc6116e06993aa2475c25ca5c6c379fefd881942acc2f476ccd33fdc14569a. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DEU672002180.
Silence & Secrets - Frank Wiedemann Version
Silence & Secrets (Frank Wiedemann Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88d63c358f785d078db932d05dea7bca18fbccd959b27cfe1a375550eae9d8c6. 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/DETO32100474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15fc6116e06993aa2475c25ca5c6c379fefd881942acc2f476ccd33fdc14569a. 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/DEU672002180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f8466e8f2d2cac231428cba0a9db636bdb3ea69175e76d61b20e5c2eb28b512. 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/CHC652200146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f8466e8f2d2cac231428cba0a9db636bdb3ea69175e76d61b20e5c2eb28b512. 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/CHC652200146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06e73983bdb89a19beda7ffd895e91734ec4b5dfa63af3a46555f8d3354fbefd. 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/DEEC31200020.
Darkbeat 10th Anniversary Collection (Mixed by Anthony Pappa, Rollin Connection & Phil K)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf03ef7f22cbf05d6232af4df1a6c4947f3fe05455a35da70f75438afba082d23. 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/AUXN22036134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbd29dd60132c7254edd6d228555e4b9d9c60b77423a025aea2ef0381c7c9b77. 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/DEEC31810348.
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
Schneeweiss 11: Presented by Oliver Koletzki
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f502c73d7e1391e8214d262b01dc55298fe4ca115cb951bac2085da7299cc38. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/DEEC31810111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd49c069bc38894876daa23e7bea2c3c5c4ebc5f2181e11b819fdcff514a6434e. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DEEC31810331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb1c7e85c3ac19f4f7c3415fde957859fc9658a1b13e6a2f49bd712743b21a64. 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/DEM092200032.
Yellow Raincoats (Mix Cut) - Frank Wiedemann Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4faffe76d7844be464eb0bc69b6b800210373618315be6ee2ebee15dc97098f4. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/NLF711600736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x927def5001116229746c89d94015b4614da10d281567ba7779f9b74b4cdb3839. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/NLF711913938.