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 0xd838daf29f14d022227fdc43116e0ab9cd8111c3f7e8df86d0359311ac8e1a51. 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/04e98191-5f20-4227-a613-e50572965668.json and https://artists.proofprofile.net/proofs/artist/04e98191-5f20-4227-a613-e50572965668.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 0xf41c93886ab9db5543825d3dded256f8481b35de329d6200961ea24d8a837922. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/UK5MS2300028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x474d87cd01ac878bea2215cb8d76a12bb8cb91031fe04e329aca795e26b2b254. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/UK5MS2400047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea7280021117c1091eb27c96a4dbc527401565a1fc6666d55ec8820a8d2707dc. 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/UK5MS2400040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9ec36692a8f277e570e9888e552b3ac756dab6efee667395b9c6bb94c10b0c6. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBPWR1600512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb46be73d719220c7d5bb22fa6ad268b445cded35119b1d9d076a58bd79723e58. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBPWR1600594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9047b0b0009b291effbaf363c7c1e3e51e1c62d5acc506082cddcbfaf8671aaa. 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/GB8KE2319571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3036bb5b5a017069011b8f17258597e742d0ebdd623b1e3fad6c6791630029e. 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/GBRF51800001.
Looking For Diversion - Lenzman & Duskee Remix
Looking For Diversion (Lenzman & Duskee Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc4d64c5696d7a6cc24987d2420ea4f02bbffeb0c06c17520f2b6e6b559912ef. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBPWR2400043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2753aeeb99950726a2efef4442c72e8f11afc49648010c2c4387a38f5b48bb2e. 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/GBLSB1500013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d15ebdaafc8d4b841b9133159e1bd4a284b911811b6989e1a361ea8d53ba199. 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/GBPWR1900021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a1d3d621e94febcb1e2252a7a99b9d226bff047500c018142a06e6a044d879f. 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/GBPWR1400338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd50cedb3e464bc5c9f2f8f05759b306fe4cd1c808fc2f575317fec633359af18. 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/GBPWR1600565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aa36f3c8cffac4a49c4aa5ec51415d16bc6d1c67d846ad8ccc4d353d6b9e378. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBPWR1500433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6e773d6caae553e958e3364a8c6aae07b8b27dd758a95028879c87ff6de82ac. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/GBRF52000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19047b4056008cb2acf5df4b25d2db991a1d0ba0c8da0e610bb78b6e2a2bdcff. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBRF51800059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d7e6fe6a96042402dedf028244e3f3aaffbb10debd65c6265366c9e0726d85a. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/NLCK41054672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb6183c40d3dd72b4faad847fcdd701672c9506d7c319e59e0b7690603a63dfb. 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/GBRF52200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb6183c40d3dd72b4faad847fcdd701672c9506d7c319e59e0b7690603a63dfb. 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/GBRF52200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9047b0b0009b291effbaf363c7c1e3e51e1c62d5acc506082cddcbfaf8671aaa. 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/GB8KE2319571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45f17fb1ac709aca73f5271c7ab14e82b17cdd55e1cb0f8459c25ebb6f9cecd1. 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/GBRF52200053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc4d64c5696d7a6cc24987d2420ea4f02bbffeb0c06c17520f2b6e6b559912ef. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GBPWR2400043.