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 0x3a642376fa8845bfdb3a2873948540a11777dd866ca12c5786a42a23207491a3. 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/b50eb7c0-46d7-4028-9b47-7ce7626fc71a.json and https://artists.proofprofile.net/proofs/artist/b50eb7c0-46d7-4028-9b47-7ce7626fc71a.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 0x6bd1a3f355d521107abf2eedd495e054af1a6e2dcb12c0a13c036be2ffec632d. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/QZK6P2199287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79abc0978ca57c025641a90f331b4f23b7776036288b578f0d1553f49fb76995. 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/QZK6F2289099.
Mental Breakdowns until i die i have drugs and whitewine but they dont make it better
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdac925dd16c365ef9a88e3ae527b93d9f2e1dc82895ac5c7d8bc7931a1fb1b99. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZK6F2106378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa81d9cbe4fdcd52bf670f00f73fb3b202a202958564a2d0903e2902579af9e35. 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/QZK6F2108306.
Empty Face from empty Faces (sorry für die mische)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf083cfdd83d029cd8696b8fefe19fcf43a136e0e1590a178e11f269503855bd3. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/QZK6F2108307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60229e5e6338a84dec7eb6f6c8e93f274c9193be475f842e1efd2db061d1be24. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/QZFZ22263150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4257e92773b9583c5fc8646dc40b9aeb98fe9c3f0f8c1cdd984ee2a6d5fd8992. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QZFZ22266250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49a953219f04384ba5c341f3832e1dc0f147845692469edd8e81fcf00c2e0028. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZFZ22266252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f51525d8188ce0fefea21484d1354a848188b35e293dd32c6dc1264d12df5c7. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZK6J2337501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x602c9d15499ad9c407fbd1300f5a6c466b285dc06426e5350abcecc428559da2. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/QZK6J2337502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x422511761c4ade828dfa40c998754a326a4ecdd28078d8f7fd18cfee7d321573. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QZWFH2354525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x866ddc901cc8261824bef576b4021def4dda91ea2c1805271b4a66aa0680d8cb. 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/QZWFH2354527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x337a99c5a26191c3399b77865a3b92f2839ae5aa71caf9c9081edb0272525b59. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/QZDA52560284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97ef03bb84eaeb653ce5e41e4adbbe824f78beb6811ca76bc7667db16926d791. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T05:30:12Z), 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/QZDA52560287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3900e8e756c5cddc7da76d961bd6df5c2b1184a6cafc821fdcb3e584827fff32. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/QZDA52560288.