Peter Clark Erskine (born June 5, 1954) is an American jazz drummer who was a member of the jazz fusion groups Weather Report and Steps Ahead. Early life and education Erskine was born in Somers Po
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 0x58f7bbb3a68e88cd9e05d854f531b5edfc9557e214681a5b01c5a6054f412942. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e50d7338-f378-454d-a960-dab088d990b1.json and https://artists.proofprofile.net/proofs/artist/e50d7338-f378-454d-a960-dab088d990b1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Scorched - based on Tunes by John Scofield: Make Me 1
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 0x4980a129bcbf0456c010d113c96712afea1768466953ca0d482090668996a1a2. 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/DEN960232201.
Scorched - based on Tunes by John Scofield: Trim
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40cde62897f995f35477b85cd5c4e23cc707a3fc2539071fc824d88c03223ffc. 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/DEN960232208.
Scorched - based on Tunes by John Scofield: The Nag
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf824c602766dd86f388cd255e20a2bfb6bf2a17da954cdf122035d868efd6af5. 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/DEN960232211.
Scorched - based on Tunes by John Scofield: Make Me 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x629e208258aae23db7f379430777dc03bb4bf8c813df98da39ebb07fb58c0c5c. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/DEN960232202.
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
Scorched - based on Tunes by John Scofield: Kubrick
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7df6aa4a60d53731c1b739d395a0d2ae40611518ba5452218890992fe731c055. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/DEN960232203.
Scorched - based on Tunes by John Scofield: Away with Words
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdb41696126bf38a91a857898434edfb9e45c47ec855d653a7eca738833233bd. 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/DEN960232204.
Scorched - based on Tunes by John Scofield: Fat Lip 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1d84ea32a0451d31ef698b0875cdc00a23e75230a2aebefa132b7274f8877a2. 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/DEN960232205.
Scorched - based on Tunes by John Scofield: Fat Lip 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcea71b9a373d687860872b6c04aa131575cfd0e8db893f8bfebd63f548403a1d. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/DEN960232206.
Scorched - based on Tunes by John Scofield: Let's Say We Did
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad397d72d29525e361ce72340f8f7a2d25ee753c5c4dba7c8bf5fed2eb9ade99. Chain 2 (Bitcoin): anchored in block 960330 (2026-07-31T00:58:21Z), 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/DEN960232210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77386c80fced8bd66fb98b81f019ad9abea9f67fd058613675f60d6af0f47d39. 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/GBF079611021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f05358fb05a5b155f0d1bf67a910db74d9d7ecce265bf0e8e71ad17b385bad1. 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/GBF079611022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0027b76e95267cb9c27cb7f159ff1e707fb70b3c9338fa80b43b5ce4c6aa8d6d. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/US4R31500033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eaf528c3ddd88f3c792428602ddb86e38b6235209047d2c051c489fbd9f7d28. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QMFMF1592284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b3c1de87f486875473321150beef93c7bef6386b3b8031dd99e3f45b5874182. 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/QMFMF1592277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a480e67e3416cb4fe9a18a54b1898efde3db029c4a03ae5439044dbbe24a78b. 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/QMFMF1592278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d4c1bfd6fef6896c05a52993182e9de904bdd5d9b801f6673163b49d3806dd2. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/US3M82206118.
The Sweet Time Suite, Part VII - Freddy C / Part VIII - Closing
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94250a51e1f8e0426c5313c584be9910d4d826c515050ce7e67194a3f42fc41b. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DEB339041506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb90a0e6af5faddcc1463890f1807876263d735256ee54ca3d3ae494f9f493932. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/QMFMF1592279.
Nu Urban Jazz (Hip Hop, Electronica, Breaks, Smooth & House Mixed with Jazz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafea45f4c8295f6c0f5e5c3afcf040961914059bacf75c97780378dd42fc30eb. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/ITI021400327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0a6a7d2b3c639a4b326526e80fe8b9a4630475a32661bb0f26a2f63ab6ee923. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/QMFMF1592281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f169184249f67f922ff540f1e3a79c82f0c7e6bda920ff3d7ce0a2fb430635d. 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/DEB339041510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0addf1b05e2e98edd6b086a6106674ed1f5176abd2b5141089a3310db32daa61. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/DEB339041511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9725308b425890d50b7665586a826dd2c72bcc132a0ccac7381b0327d449d62e. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/DEB339041512.