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 0x8d650b575e9bac10e369f381f614206db7b09fe1467275fd3a81d9f7fafc4b07. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a96fe258-6345-42ed-bead-baed4793d233.json and https://artists.proofprofile.net/proofs/artist/a96fe258-6345-42ed-bead-baed4793d233.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 0x1e0de55a9300ab3760f7255a74d70b781f310e20f8197005509fabbede732571. 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/NLCK41054319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0fee586538b1c76e0931d38eabd3288513a01b846d5779c4e3ae111af817ef2. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:20:51Z), 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/DECY51902197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7dd507190b05ad46be4bb213555ae4b6c056959ef088ea215c9bd860ea25836. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/NLCK41059899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5056b7dbe48e30c672d6b35d609da4a6737c15a3351b2025f340552d67466962. 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/FRIDO2011032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72bc700979e577d4f32f4da834a96bacc35f750f2776dc168449976a5b361bb2. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FRIDO2011039.
How to Fake Success - Midnight Vices Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccd04328070e998e526208add9f7d5436ba1389398d9190513527092ee191b06. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FRIDO2011040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a1444800de042122efae69ba3c0577c6ff785f39d4fa141f157c8558c28b17c. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-20T00:19:19Z), 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/NLCK41069919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aeed1a46342dffdcbfa014313673809aadf3ab95f0f5e9bfc7a1a26195a85b6. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/NLCK41069920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x237a33f54da58c69dbd460522b410f3344c663659c7a67653a144e574b2cfa1a. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/NLCK41069921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31d52014333f891352ab46c02d1878709470c19adaf2f49636f6bc2c7a7cb763. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T15:47:55Z), 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/NLCK42220927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac0251ac5d5cbb17ad3da1afa480edeb42c26d5a5ed15d298bfe8b00c8e1eb69. 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/NLCK41076882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdca98ba6d819231c93e43c321628de5f624dcaf79c4508b90bb279b2cd15ec96. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:11:14Z), 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/CH6542010782.
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 0xc632f033c3d8885d04c5a4d34a65a3bd105f71550bbf175ab71a8e647595e5bf. 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/NLCK42401049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f0fb2fed3e4796de556d2ff2d05742ab065664b43f65eab7db97bdc18c0f96a. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/NLCK41076964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe84850a502218b13923d5b01548e52fff3cd1d026c72c37d70bd6cd0919aa89. 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/NLCK41092027.