LFO may refer to: Low-frequency oscillation, typically below 20 Hz Arts, entertainment and media LFO (British band), short for Low Frequency Oscillation "LFO", a song on the album Frequencies LFO
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 0x3f3959713908430c1434a185ffc8c03db4868e61a7316d52bb904f84f454c236. 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/19bf7330-f3dd-4389-a21d-cf14f2f4dfd7.json and https://artists.proofprofile.net/proofs/artist/19bf7330-f3dd-4389-a21d-cf14f2f4dfd7.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 0x75543ece3b91d905ddfca988da0b074d82350fe2de616296254fe4cb9cd80e0d. 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/GBBPW9000017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdb663f0235b61d75bf7adbb35d6360618ad69848edfdd049e52c281b598201e. 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/GBBPW9100031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26cb8c222c81abe3b921e65f91df25caf7a6754bf0f6abb17d006c94f186c278. Chain 2 (Bitcoin): anchored in block 957801 (2026-07-13T04:17:08Z), 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/GBBPW9100027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba014e8525add6b11c06e35b599b4853f00161f4494626af2c2daffe998a9c2e. 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/GBBPW9100026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04ee1e992657ee5e94a9428f2d56885319c89f749abe27510f2d01eaa831bf03. 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/GBBPW9100034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63f1f65dbaa816186ca4dab4602f0f8f14fcbf94568344983ab7353fd99824ec. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/GBBPW9100035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc87a4a68c77028fc0a6335223c9a010bac8e58438f698625cd5cc5c1d4ad63d5. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/GBBPW9100036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33170ed4c4188c8a7ec5edbe968fbcac04de105a606f8391e8dfe9b5acbd89ed. 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/GBBPW9100037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03e88f567174931bc7a38e94e50930b98ec73ca8c8bc4cb6a419283d4bf6f0a6. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/GBBPW9000018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89c931b8c04a6c9fc723929a286fd5d6f55080b4c69305a3a8b4d86604c461c3. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GBBPW9100038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e28929ea6b0bad989c1c228462d4d0057dd4684c462c6eaf2475bb459e7357b. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/GBBPW9100039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec1f243b6d33b83868692f97df8ae2c4c9e48f86b9ccbe8f56e496df0e000fdf. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GBBPW9100040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01900cb7e969c83b284c18c4c11d18b3e91fa5369c77dcfd03b5318b28804dce. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/GBBPW9200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x425aa5a793fab5bd20174a88e61a9dc05b746275a9aeccedfd923f560f60f0e9. Chain 2 (Bitcoin): anchored in block 958682 (2026-07-19T06:17:12Z), 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/GBBPW9600077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c0ba538412e723ef308f3a6c6b6c65b4f5f2412ee7977e982f5e0b369bcbe44. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GBBPW9600078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7613f1921690933e44bd92f1b7de7143832377e4f02bee429e5b6349f935d037. 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/GBBPW9600079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38e9b46af7f8d5e8714e8d00d90ac57616d1b6d6221966d3971c21a8e951e86b. 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/GBBPW9600080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e10af5959638bcc110debb0b2af906e6e2c9d21f22d9eeace9de42c44b5bf31. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/GBBPW9400148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90366da2f3af107a4cebb84d10f99a765096934748212f457ef7981cc1443cc3. 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/GBBPW9600081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa388baa816a03cdd966674755dbd0c1d579144546e68abcf2f09c93009ae83cb. 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/GBBPW9600082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1a4dae2685ed6f6fe15a5db5a0ed064dda2728e52d647d4664bb2ef1ef1db14. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T04:55:29Z), 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/GBBPW9600084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d71ca5dae7bc69656052163a7dddf27e7ab94de0c4f6dce8cc4c6b38db16372. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/GBBPW0300120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9816251b6c8688565552ce7eb4d546d56d24074d1d5cb7555207c0daaffead79. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/GBBPW0300113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf59e627b0cb9650b512473339c9515c401b165be8602de9bd583668eea2c9a71. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/GBBPW0300117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ffbb3c6e8552475b1e1ca04965882634a42d29936d7ae2904207148caa6efb8. 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/GBBPW0300123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90caf4567b4fe199af4362d999fe4b8697835d6c734e22d8286af3d8101c96bc. 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/GBBPW9000014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x587cfaaec4c0a405fe78e87ed598ba563a0c470cd660e8783bb35e5b55b8db9e. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBBPW9000022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6603599fd7181568506e06c7efb36db5b55fd2484f69a00c46783c681925384. 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/GBBPW9900126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e5e2f09061f1b02b215281af33509511b8bd2f02611478458c07d918fc9e698. 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/GBBPW9900137.
Tied Up - Spiritualized "Electric Mainline Remix"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b806e3f5943b03d06b0d1d0f111222aaef3782f7a34aeb34236ef92b0a47cd3. 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/GBBPW9400152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb74a8dcf205ce0a6a9f6fcf8568af943bd10ceab56531e848762e2445ad4a3b0. 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/GBBMQ0300222.
What Is House? (LFO Remix) [Original by LFO]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ca9a87f931c630df41040e263b566711c89c658bd090254c7d3f5913872e49f. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/GBBPW0900137.