Perico Sambeat (born 23 July 1962) is a Spanish jazz saxophonist. Initially training as a classical flute player, Sambeat began playing the saxophone in 1980. In 1982, he moved to Barcelona and start
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 0xf8f95da8c0402654728f9ce5ba9ac62c4ef0a3208dc507a917ef423928507ab7. Chain 2 (Bitcoin): anchored in block 953660 (2026-06-14T17:20:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/54018b81-63ee-4e34-99e2-ec0f56d99e3b.json and https://artists.proofprofile.net/proofs/artist/54018b81-63ee-4e34-99e2-ec0f56d99e3b.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 0xe5d0ccb6d2a31850aa499f7c7d109999fcff7ccf76cffa0e82adc7c58e1363f5. 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/ES7731102001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5da3466718e442ab35107b19839626e98c10d3c941975e1a0164e4153639e011. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/CAJ221600056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa541581a3082e946966f6fc677c4cc2fbcfc62c68dd34764ee2a5573afedd026. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BEZ250719303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa00dcd861f6730740c4e2e4d64d3f425e91bd81ff08c30b23b406ac37799c5d5. 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/FR6F31517790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0a094878c6c3bad9b2c7585ccd5c9b963d0a7e061c93cac8acb5594d4a9af1a. 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/FR6F31517800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf60748443d786d3f4d8bc31454dcf1669efc0621257467ca82b943a3258c7336. 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/PTRO12400262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf385b5b5a9a9609d1588707713751c89729bf645d0ed4c190f0332c509f17e8. 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/PTRO12400263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8248ff51699addbc6539f58afc35df27f10408af04ddbee53e6f75ad1b8dccb7. 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/PTRO12400264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xada9deeba434dc6c9db4604ae1d7542467cc1ccabdc85dc80d15c753fcc5b1db. 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/PTRO12400265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64215db4c67bee5a2fd8899980089eeb5c2ca1616c3d2cb650afde7cba50ec2d. 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/PTRO12400267.
CJBb Pro VII - Music for Small & Large Ensembles - Kenny Wheeler Dir. Perico Sambeat
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d888409afd62feb2251c922f2f2239d4f6decd2225948b580e1db26bac2180d. 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/DEA890300324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12fb053e7464f91efdbd30b3b13d8939e9a72ddf34153fa7c9c7993537d3b70a. 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/ES7710504104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd33ef1a84202b697fdd8202a4b7f8829755e5d5de6e9994c3be94d409abfbec. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ES90S2101524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51267545e189e507514d80079e19f2c696cc538e3cc60aed7912d2abe7790d87. 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/ES90S2101529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49e432431f412f80f7160960d72e3ef05e23fc8a9bdd360302a5db58302d2243. 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/ES90S2101531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc58c111ced84da12f984bf0ace3392e3921c682cec3728e1339930ccb3d88c6f. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T21:06:23Z), 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/ES90S2101533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95e5afd3891c33af73be81be970a769a68f34f78d2ad8fe46132899cc85a7dee. 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/ES8511404196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d2e52eeaf07b022710e8c73b46c41e08f0d298e2ebbcf4ab0e7cb7a70abffad. 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/ES8511404197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba467913633b395a820b3f50ffda42e298412eebb769f4a7f14df69398f02009. 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/ES8511404207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73a833fbff068e3f1bbd4efc4b02cb54ac9546d48724bb2021af77630c3b8124. 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/ESA082313814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b0e0133bb16330fe3045de0c5ddec7b047ae58c92cdeae8e06b8342c763fb0. 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/ESA082313816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9355733b70e2681005f8685b6252ea8511543812eb029e4cadcc5cccffcaf2a. 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/ES8511001951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0696dbf26e714a9f77a5b40f3f6d2e815f8a6943591d6ecd9dc9a37e3845c58a. 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/ES36B1320111.