Rocco Scott LaFaro (April 3, 1936 – July 6, 1961) was an American jazz double bassist known for his work with the Bill Evans Trio. LaFaro broke new ground on the instrument, developing a countermelodi
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 0x31e16f42c8636e026552d57a160e141f5b1bf6c0317556d68c4175974a61a270. 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/d722906b-212d-4a4b-a345-db0370deef2a.json and https://artists.proofprofile.net/proofs/artist/d722906b-212d-4a4b-a345-db0370deef2a.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 0x869e8ea6aa5b6ead82406aa4aca5efe3691befb962491132f5f85cd9b633ffb3. 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/NLHR52106506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbce11503e76b671c0a0b3dfe394ed3f9ebaa41823b39dacfbf9e131a87e58322. 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/NLHR52106507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb327cf478e12fe6bab99b58ad16efa63004bde2dc3ec8c4dae66e0185c05aa1d. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/NLHR52106508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8db9de9bc3f97a4b8438acb97baa6680b97918a666b970962d24a815dc2d6a9c. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/NLHR52106509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe046432a764d812f5723e255deadc0c1e7a7c2f94b6520ecc0d3d7fc76563ba8. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/NLHR52106510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9cba526ff78aa1e36dd650a16a54ce2fafd0a8c5716cf37ff1c7dcebeeecabf. 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/NLHR52106511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c0cf1b977fb56025bc1f4a5f3393a5623eaa23bbd87550a28f56460e5174746. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/NLHR52106512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacdd69c042f2b8a77e6aff87729f376bcf7fcb3ef4bfffa8d6efb1a6e18ba9cf. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/NLHR52106513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed8d0a9154d274f97ed16de69d5d384d43fa717b78a622aedd2c5d8e229b876c. 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/NLHR52106514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81ce2a96792724f5c588d2e50fc930685c22b13d5a177b0976b77fc385e47a65. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/USGCV0980534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x388e2da8aa8d27ea39be7f0eaf53af24fa9b14bcefca7c055a438dba268c6fca. 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/USGCV0980535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33d3f5d13d9457d247efa3a71339c309e8062c8203ac6d0f04b640ef4f19a740. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/USGCV0980536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81f607235c1f8aff3692ef0a7afc8830383df7e96097fcb09e74ff2adf021955. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USGCV0980537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa09437df3f8278ce6071057cd709ba6babc78ee81c4695a96c4a0c76c27ded8. 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/USGCV0980538.
My Foolish Heart: Rehearsal Tape with Bill Evans and Scott LaFaro (1960)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b5a72509482adfe79dcdeaafc92bdf2bf1b7458c50de272f1042f22eb3a66d1. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/USGCV0980539.
Interview with Bill Evans by George Klabin (1966)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd45653c08ec5b4a143f73f678d0fff73e09240a3568c70fc7f461f7f6cee227d. 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/USGCV0980540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02ec21d314f0b4df7ce550c28e7a0308500b6e21531b044c67697981c3bcd28f. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USGCV0980541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xede87cf0692555da3c2e696d5c37dc36a6ae0dd493275e7f47fb4bac54f201d5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USC4R0720029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xede87cf0692555da3c2e696d5c37dc36a6ae0dd493275e7f47fb4bac54f201d5. 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/USC4R0720029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7de0e3c6c2d0e98f7da7051f0d2baa9de170135100c8dbc857ac1d279d05f498. 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/USC4R0720031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43e2c6a2b00dcf81c766c16e582df000d816849da87916e9e197ac7be8cba6b8. 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/USC4R0720036.