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 0x137286fc291059a9ab1f83498a007ab9fa2ef60a2b4778d0c54073893f04274c. 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/6e13f04f-390c-4e7f-b55a-b6a589215d53.json and https://artists.proofprofile.net/proofs/artist/6e13f04f-390c-4e7f-b55a-b6a589215d53.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 0xbc125b413356fb2a8ccb9295c5d7e8ab3516e09196f32dec2bc2b1eb08e16749. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/GBJX37215004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x613f267545d861d88587d09829465a21b81d795873fe8c4bb7f46ea3149ce537. 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/UKF342000070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9db7195f7e83bf23ed2a6bc020e420d9737e661a85506f8dc0db6133619b747. 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/DEU672201165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1138916363c1432c33bf069dfe3ba4a2e3b1f14a4c416b4c0a612ecf88fb0282. 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/CH3320900210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe22777a11b0bad93102fbc8d5de9689e50d184191aeaba7f0baa42315a4688be. Chain 2 (Bitcoin): anchored in block 957025 (2026-07-07T10:59:31Z), 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/GBMVH1900800.
Sub Conscious (Original / Manfredas Remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2085244f5823680ee6b928702352a0f21d016454de99f4ae7100bf45bf3e70b. 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/GBTZZ2000035.
Sub Conscious - Manfredas Stream Of Consciousness
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc55a5df4e0698e33999b5017bb44fa3f2a5cbe79975fa4501d2934b6427edcf7. 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/GBTZZ2000036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bc6c770a7898500199dbc74b715bd58fee9a69a5dcec04808d1941582c8d0f8. 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/FRPDG1800240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd108314b9dec83191b34f007b9b5f5aad503c3ae354c2db649f87de8a1ec86b. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/DEPL91800657.
Genex - Manfredas' Asaf Is In The Summer Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9df14c1044dadb7da2e9e44b6f57388831af4cb6ec01c3fecfbf94f8c648158c. 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/DECY62100105.
More of That Frightful Oompty Boompty Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7efdbfb8fb40d8387d2d0b604a98c21a2d6601738565c4db8806dc7882ee9263. 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/GBJX32265508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a647fd9a3b52b1212f9dbb74156c540e4d1f9674b8973d7b062fbb37364de25. 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/DEU671900496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecc3c08ed78d8f04a8b554b173e09ff3e9d5835a5a1531c41ded627fb4f7bb18. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/FRIDO2010945.
Nuit de Rêve (10 Year Anniversary Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7266085620122a0c6225533fde1274c29c5f63e0772f8fbcec8cf6939b91b4c. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/QZ4K31600249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2bac64763c73455c994f222a763529f77dc4995f667624102dfc32ca0338c4b. 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/DEG931850636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88cb83b2a7ace0ef555f27f4b73bf27f24e9f0b2e1bf54895a818eecb168d63f. 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/DEG931850637.