The Golden Filter is an American and Australian electronic music duo formed in New York City in 2008, now based in London. The band consists of Penelope Trappes and Stephen Hindman. History Lead sing
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 0xd4e496b8255d29057107fd214cae4580b619c7c7405214627ddc85f8bec9e85b. 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/edbc2389-71fc-4a1d-943f-23d1aed43841.json and https://artists.proofprofile.net/proofs/artist/edbc2389-71fc-4a1d-943f-23d1aed43841.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 0xab372412222b768ea92a9e4cf3e70f4c524b6bbc0e4f1796f61948e0da25533e. 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/GBKPL1792644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2aa65e4010c97f1ea57746f4daf4a12cbbb83f2ee741ab8ee67d320f4f2ccee. 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/GBKYF0800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4161e312d7c9bc7ae4701b105c491337778e56e4fa43dfb04c46b58471edebbc. 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/GBKYF0900055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ce80bf58192e7fcdeef8a3c768904c54a52caa2e7445d6b1d12f66ae9e43652. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/GBKYF0900051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x382f1f0325aaf09876f2eb6af497da40d3900576e45dd79146ecfecc12abb5e9. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/GBKYF0900035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea9794d47f75266c67db1544994a13366368caae9f9b0883153501ea189089ff. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FRU700900031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc36db7d69e6c32189e3d20337383609458130928ccb6aa49902df5fb2d605e7. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/DEU671602727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f42572b76c7568af92e96ee7cd914951c0310a70d64c0a97097f91c53576729. 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/DEU671702325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3275b5a00aa44a3ca2782cbe78e96dc3878a8e4ba564842a2ba5dcc417375108. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/DEU671702326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x411c6476d624a9d4418c0f31f926f0da21840fa30ddaee1cd0dba66f9b1409fd. 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/DEU671703815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf821f179573438597df3f7e4ceff2ed73a90e726fb5ccafbd450b81fa04009df. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/DEWN71700088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x894abf9a509e0ebe117fe6859d1020351ce424a64d256ad0b098b51a08f9399e. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/DEWN71700092.
We Are The People - The Golden Filter Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0795777df8b5fdc1534f0fc12b8cb77fa5141f349d420973aa3ffd212174ca36. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/AUEI10900078.
We Are The People - The Golden Filter Remix / UK Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddf10ec19b3394649d1eb68e384972abc3ed412741705d654fb5e4bf807ed536. 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/AUEI10900099.
We Are The People - The Golden Filter Dub Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc747cd42b496620989796b0fe45d604d4a656a59fa22d3c5e8a9ef39b259c432. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/AUEI10900107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x774349d1e51f212f0068833b396e12168d1ba2b4e7d0649d58baab89f4e9efcd. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/DEWN71700048.