Effy may refer to: Effy Stonem, a fictional character in the television series Skins Effy (Skins series 1), an episode of Skins Effy (wrestler), American professional wrestler Effy Irvine, the fir
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 0xc6486a66435655217ea7eb0e2930aade325a0b17d96a2a3d3d07192aa445eeee. 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/da93d5c8-3966-4c95-9d9f-22e69b716cce.json and https://artists.proofprofile.net/proofs/artist/da93d5c8-3966-4c95-9d9f-22e69b716cce.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 0x7b2462f1509052744f93d29d26e85245dd51281a06678012d7c10a33b5b2482d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GBEFR1908953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba55ba5845b51a9fb4319825ecf0433c31046f389c0d3bd918be535ba1e40bb9. 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/GBEFR2108979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1294a488ac91764efca2dc4e8f1164b23a8a2dcfa4f4930eead51db183f9960. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/GB2DY2200217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd67ae5564295fe4fad46e2a4b664a2c754732931f5fd8071571aa9c6c278b16. Chain 2 (Bitcoin): anchored in block 958051 (2026-07-14T19:14:42Z), 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/GB2DY2200418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5081ee6a1feb62e9c82ed19f62c0f6c2d2907161b432fabc26684ad6e8f4a854. 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/GB2DY2200721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae614dcaff5e3150111ddb91bb8184302dcc412cdfa292930d3d07325dcc01f0. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/USZXT2350763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2b3c577a7fbd53faf54b692b69009d99de14ae98aab953924aa41dd5ac507f3. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USZXT2352304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60de1b4a3dfba81f5a36a93f805f0e095bf6294d8ec0be8ff0397d32c1badbe1. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USZXT2352030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f688825f7820666335fe1ff81c9e3bf25d9aaecb17d7204b61ffb44c540aab8. 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/USZXT2352465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34de3b79ae0a2a1bf691934a4772354939447fb4f8b717526d7434de0755877a. 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/GBARL2400980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36bca0a63542fbd5adbf0cb5336b9c0d55f923200192f29a07ebbef24ea9b735. 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/QZPLR2182625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7679dea03b47fdd899aa86acbc8dba2dccbb9f2585a53fdc2a4b7aca4a847a45. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/DKENA9401201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec40443383c98e81d094172c5b2d137f3e608e8f0abf18cf1abd48ba6e99d907. 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/GBARL2401472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a62ba0ff8dadf5cdc1335aa276b99d30c2043451a8904a99511ce5122dda813. 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/USZXT2351268.