Juan Angel Segarra Crespo (born June 21, 1953), known professionally as Nino Segarra is a Puerto Rican singer, composer, musician and musical arranger. Early years Segarra was born on June 21, 1953 i
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 0x5a381fdabe8391ffd23458074e60110319928377e3d2dda0778b2c02507aca5f. 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/d7df4734-41b4-4e14-8329-80828e9b2d8f.json and https://artists.proofprofile.net/proofs/artist/d7df4734-41b4-4e14-8329-80828e9b2d8f.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 0xd2188be333c1eca629a6dea5b29ed88a4d2c7bc3c50bca6cda483ca057865755. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/USMP68960171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf50c3c5e256401e824b4532cd4ae4888bf9e42dcc2aa34480faa00c176f1f6a0. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/USMP60900034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9e8125889b1a9ecbeae7ebb8682740a57f05561b40b1a15b1f994aacf076e5f. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/USMP60561578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81be58e8669f4fd3b78e4ba8110e271fad6fe2d9972d978a7bace50d8dac9c27. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:22:53Z), 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/USMP60516157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x199598ef3533c541737b3b87cc521c6d3d4e90d4427e4f7ff8c09e62bf0a0aab. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USMP60060312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ef828b96f1ab888f22f949696390220661ac1e37af31555f5d41a4e80fd1a9c. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T11:09:53Z), 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/USMP60900032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x199598ef3533c541737b3b87cc521c6d3d4e90d4427e4f7ff8c09e62bf0a0aab. 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/USMP60060312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20ba332b4fb9826c10d61e014181e001901497f207b0ec535c409888b9f45d18. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USMP60900026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1638dd75be8e0d6a4123d8a7c782280afbbf62c5d789a2d928e939e4d73ef335. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/USMP60561575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6c35234440ae942c896c55ed8ec8f10427f9e7aec6445401a65d497897c6e09. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USMP60600356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x270cf344114b26711aa731c9a78edc1eb158b8dcf3f891bf8141c29db36f618e. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/US3Z41701510.
Medley Boleros: Lagrimas del Alma/Miénteme
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd12ef9ff33475dadcf43d065bdfd3670ec87994618556d4b43b94d033a396a0d. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/US3Z41701511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaf69efe59cde0235429e9fc64f4b0ca0cb886b4d2d497bcccff9a3074bf0ac3. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T12:07:35Z), 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/USHM91938608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f2a8d454e7ac7b7ae5c3f44b959f969c9170deb787276de5fb3e9a0cc9f6393. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/USHM91938611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69cee5b89cdcbbf13310a0881eec369800633aff1147b3feb80298efbdf00457. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-21T16:44:51Z), 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/QZQVV2100016.
Medley Boleros Homenaje a Lalo Rodriguez
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4edd5a2b67c0169ea72bfd12c9fd35f169fc82a6416bf509a1f8db8e416bfd9e. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T11:11:09Z), 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/QZQVV2100033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b91dbdcfb337d711f5c72f566a627f6dd9f1c36e8b37bd7d45d01888fe02f0c. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QZQVV2100049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a9d9f4d9ee5ae97f06c18f3a00a59719f223bc1c4767187c47932ee4eb44b04. 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/US3Z41501074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd773f4c563c9a785072627f989ab0e797ef1f724307c7cde6b6cf2a7dcd212de. 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/USMP60060311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd773f4c563c9a785072627f989ab0e797ef1f724307c7cde6b6cf2a7dcd212de. 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/USMP60060311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x415f3e4bd25227dc3f2d62200a440e6a7d26177c574b4aea0b9c834745082145. 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/USMP69963126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17984d671b46a6baaebdcea702c5b5ac79ba8fd361cc0653af96850ff9c4a845. 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/USMP69461456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd773f4c563c9a785072627f989ab0e797ef1f724307c7cde6b6cf2a7dcd212de. 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/USMP60060311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f79a77d3b8c84d6af089e714b85ccae695230383f22103c55b49f93637f02e6. 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/USMP60561573.
Medley Boleros: Que Seas Feliz / Quisiera Saber / La Vida Es Sueño
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0fd7ef14e206788858d37de0c72191e2c128ad09b73acf75cd838e4e6e7ad4d. 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/QZ7R42052668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x085511c5b7aa733817912d78e78ae1262bfd6e76d2e851ccbf5aeb6dc56110c6. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:16:56Z), 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/USMP69962906.
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 0x8c9af97a38dc6c6e213b21bf09c63669f83ddd8924c79c36790ea526b1c41567. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/QZZ662311523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0adf0a3ef30009f333215daed5dbf474df5e7258cf047ad6f8fe76cf2f8bd71e. 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/USMP69926290.