thumb|Luna in 2017 José Alejandro Dionisio Luna Ledesma (1 December 1939 – 13 December 2022) was a Mexican scenic designer and lighting technician. Life and career Luna was born in Mexico City, where
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 0x51facb2deb965229946196402c0ad49285d1d39bdaa66d51f1e1686d1c14553f. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a566cc8c-35f0-440c-b89f-f9cafdc57360.json and https://artists.proofprofile.net/proofs/artist/a566cc8c-35f0-440c-b89f-f9cafdc57360.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 0x210b498f0990dba9b00ee63e235e43b91e553df65382f7df8b33ec54742dad8e. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/MXF152201383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbc4962f7ca9c3a46184287674f1e8038fc55b0129729adfc6369943bae59e95. 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/BK4DA2307986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76a6f7e798307c2571482ca736d44b4970c970f091b6c857384e04f09fce02fc. 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/BK4DA2321350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe67bdc9940766668ae389b7d88034bf10aa1419f0486efbae424dc2906ffaf4f. 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/QZNJW2058716.
TBT (feat. Kenia, Shadley, Jay Kendall & Shantty)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92e06cb168d6b83daf4d2e6da6ac3f5a3fec8fec58f668549a6ebf339f47fb11. 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/QMEU32205192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf410a973a242e4d792a71c10d3989d46396bf63644e2e4d2d802e48af0b4b3e. 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/SE66N2262335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1e485d653a612a66be6b0640896b36244b0bad9c8aed45e8bb4ef6f4d2300a4. 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/QZNJX2292441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0541ea146cad69119850ad6cb9d39e50effbc141ea2603698ffd0124ad071e60. 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/BK4DA2307271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d1b9cc17a0881e0ec12007317dcb6ee11669a52b3e33386b3b82a9b8640aa8a. 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/USHM92296053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02493964d777180adee13e2b73aaf8de17cc898222051f6fdd93230a1ed45115. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QZGLS2165747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa577f35171c4832f54fa9579266385cb2f7476e1cf597d294ddb7209af462db2. 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/USL4Q2043246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb662a89ee16f6eb221b1109e8dd055cbb614cfebdc6cd8c0b17da6dbeb4911e7. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/BK4DA2503564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc209cdb5747c31d4603a5892b862bbe9255d98217f8295416ff204686f9488c. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QZDA72591103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x581210f1344ec211924c1bd292d56ed37f4d2376cc4e99842e8cba6fe4ead48b. 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/USCGH2550909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d0a004918fbde09a38920bcf19e585854265a5c327001f6f316367fd00c53b3. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/BK4DA2428684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dc1d72e35280d8e233ea7bba58cce2a21a03810840896c3e43cf68ef7faa2c0. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/BK4DA2319269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dc1d72e35280d8e233ea7bba58cce2a21a03810840896c3e43cf68ef7faa2c0. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/BK4DA2319269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x295e53d84c4f24eea43d2010ef2f775ad6e34645ac90f39058bec56a014cb797. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/BK4DA2318767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfb375b6340a8dffeccfdbc8621d5f3cc9a5401d8472690c410d783006b729d3. 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/BK4DA2311780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73643edca22c2a1bd9d9a0e8e00a7f7a481235605e15d52e86c5596b36d10e32. 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/MXF152201166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33bdb8ccd193a9f561883cb6bcaca58fb40f70c0c79ca7157ff48733cf90967b. 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/QZHZ52230193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66b02ff48597d548ac7fda6bfa3735b71d8a07fc28a27af064599ec250ed63db. 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/US7VG2236562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35b7d4c7cd9112b52e532c186ac9c63bff6259476d2e71b2142c115f7e599193. 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/QZGLM2444167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60654b2f9c1ca9d654e2217142672d23c79251ce8a409ddcd24480580672dcc5. 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/QZTPX2390030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44981be5a5a5ef6c71da1aac2ceac9ece1aaa5723c7a48e344fb6740eef4b16c. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/USL4R2226190.
Las Sombrías Aventuras de Marianito Bellaco
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd75f06c14b96cd5d672562ad80599de50326c993b7c25185b2d39ce797987a3e. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/QZS632182471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ce0250517691aa10a59913d2a3632bf09e60adb8bc6a4b6555a79ab4fcdc625. 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/QZMZ92148690.