Fall of Efrafa was a British crust punk band formed in Brighton, England in 2005. They disbanded in 2009 after completing a trilogy of concept albums – Owsla (2006), Elil (2007), and Inlé (2009) – ins
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 0x75bf2f6c9eaa46cf06109fc731e78bd5956bdc880118c8121ad318b15f080b80. 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/242b95d8-76a0-4f6e-832c-206ece9ce473.json and https://artists.proofprofile.net/proofs/artist/242b95d8-76a0-4f6e-832c-206ece9ce473.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 0x31d6b11ade8dc379260463d5b69283014ae0adc97af5f5ca885c21040ecf9462. 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/QM6MZ1937423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88dbd29df8e32ebcd6567d271c05027344df88467e2ed8af3ef632722c29e3ad. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/QM6MZ1937426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9489742601865939e64e156f4c9b00e67bc474ab65a0cc2421cac12da33cd550. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QM6MZ1937427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74fcf26d91d2f6baf2e0a29276d0aee2a48e93f6e76f6d92cd8ffe9d9d7bbcb1. 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/QM6MZ1937429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02fe9f825420d29835eb77f9fe85a2bfe20ae99bf7dd06d18fe042326e7823b8. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QM6MZ1947410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48fba369493aa9eade02dc26f7254a07b0ea00c22e33bde204df3e4ad1d00c26. 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/QM6MZ1947411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe89ba53227ef4e882bc49fce07a0cc69e0f0e98533ff6229d096505671325b91. 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/QM6MZ1947412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8087066b9ed9de01bc4f869b2c7d00c4852ef53a6c4b4f0d9fb88089c287796. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QM6MZ1936959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x074e9a7777290e9a3c6ceef5aa2c0d8ac77412de2c38b35b9ecc2ed3717ba9a7. 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/QM6MZ1958836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1965fa84a6b4683143a6472d54a014fbc0fadae6c6bd07728ec07555c3c792d. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QM6MZ1958837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5b938f6728edfefbae278da949bf1981fc572c3331e06027dcc74f3abb0be61. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QM6MZ1958838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aa772cb796d0f24471517997bc9f66b1dc5983736e3d24cf81589908da6eadf. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QM6MZ1958839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb544cd0117c21c2020fee35a0ce26e4c56ef8725f51a17745869348a465205ba. 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/QM6MZ1958840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebbdb25ab0c504dff7c96cb6ef22e264327dcda0160381b6f62cc5a284f5cd98. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/QM6MZ1958841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a16eeb4d852302870c75e5605424133f5a26f8b78b0fd2aa26b29fbe40f712e. 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/QM6MZ1958842.