Serafina Steer (born 30 April 1982) is an English harpist, and songwriter based in London.Serafina Steer's Website. She is best known as a regular collaborator with Jarvis Cocker. In addition to harp,
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a925473caa3a4d57628ad164ec5dce6c66f699ca69af86b141653114cc16e93. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6b4d1ccd-0372-47bb-b796-670cb80b7045.json and https://artists.proofprofile.net/proofs/artist/6b4d1ccd-0372-47bb-b796-670cb80b7045.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e2583f2493a5da68267664aa6039f742613a046aacb1f571b5204d5e2cd7254. 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/GBPKZ1200040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x829fae81b27234cbe48d7db0508ad382da727294853fd25616b562c730481f5f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBPKZ1200041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8c3efe2a5a62b0cd686bebf0ade0b7a4d2597ebaa9b1ff57937211b485d8f2a. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/GBPKZ1200042.
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 0x5fabce90674ef5d194cd99314b1b3c574572261f1f758b57abf4a93c7913e892. 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/GBPKZ1200043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10a9b68031f099f2aeae8fed2311a254358cf9d31e5deb6bc772fdc6eabd0cbd. 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/GBPKZ1200047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x423ef64b80cba14e870d0a6ff1908900701ad5625bff5b216c086c78b7bcc8f6. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/GBPKZ1200048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d2a20537b9b838ad87c46a760a88af04bc21a3d5803781735842c4b37340bcc. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/GBPKZ1200049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe85cda337a851bb93d5ff8dd36c475e133fdeaf57d2d7e2d3f013576d72fc893. 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/GBPKZ1200050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9a299d06093d2317a858d14860a57a770f18e87043416f0466d2aaf674d792c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBKXH0900084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ba2efe8b0d1d21d89d2a12c5b89bcc1447ebae1cdb98655b7bea1c0f5581173. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/GBKXH0900082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c85b69bd7e6d45d753bb41fee62aefa9b17f9119881f1a36eace15e5ea88763. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/UKBCM2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e284773fa21ae4acbb12766633f7f1cad9cae37c8df0b2e3c1098b0f5715729. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/UKBCM2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a8914527fb4a3ad20987f58bc6ded3e09ea5db1b81409371d0ef46d895d7859. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USA2B2319175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5afbc9703e6dba52e5f771925502eb1203d2d2cd2970af10d9e5e631723fcf66. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USA2B2319176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b454a80bb9c4abe21dcf58aaebaebe244be7f6bcc07779f3a3dc22457764c19. 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/USA2B2319177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2175750e6fabda0a075bd3f721dc8254b69273806aaf0bc76b3d0a143ae39f6. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USA2B2319179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4949a20ccd939140cfdb9bcbf2ecb04d8bcc814e926902355d5c02134f34596f. 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/USA2B2319181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10ebc4eb2d96c2f9420bf016171ed5824e4bf798f07223f85b6e17d633423e2f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USA2B2319186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a1e0bb9761e292a0bf706c9cedd44d02b898d89a182c6d67e2c8c10d4d505e9. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/CH6542317572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b454a80bb9c4abe21dcf58aaebaebe244be7f6bcc07779f3a3dc22457764c19. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USA2B2319177.
The More You Love Yourself the More You Will Love (Remixes)