Los Mustang is a Spanish rock band from Barcelona formed in the 1960s originally made up of Santiago "Santi" Carulla (vocals), Marco Rossi (solo guitar), Antonio "Toni" Mercadé (acoustic guitar and vo
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 0xc7ab79ed6b5169d59a4788a21063a879411e943d33147364fcfeb9548ff5d304. 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/762aeb49-3fbd-433a-98a9-a78937c5e182.json and https://artists.proofprofile.net/proofs/artist/762aeb49-3fbd-433a-98a9-a78937c5e182.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Los Mustang y sus exitos (Remasterizado 2015)
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 0x6ef08bf2f3a2d93616887088cbb484ea3cc8b12f74ce1f0255b547fee3eff6b3. 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/ES5079300319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1c1f97d30387f7af2944ec0ddcad933c85b2cf082d2ee4f2a5f44413c9d6ef7. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/ES5079300328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc606a71bc0eb90e2b895ea3374ff70681f112e620429eac71bfbe883af6b0ad2. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/ES5079300331.
Do You Want to Know a Secret ("Quiero Contarte Un Secreto")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5958bc27f7a8dddd0967f1da2678f76607a5cde093c57dff69a352fcc7edb28. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ES5079300335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0199d234adb168b8971b4553e356ec1e83d4f991648527a2f34abca797d5031. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/ES5079300340.
Grandes grupos de los 60 (Remasterizado 2015)
Conocerte mejor (I Should Have Known Better) - 2015 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42054d5e3526c28516d06c35b450c4366f449a91cf90d03956b1606109cda76d. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ES5151502606.
¡Socorro! (Help!) - 2015 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ae57a2e2c01d2ad5394d828ceff44b780c1a8e83d54479d2917b6856616560. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ES5151502609.
Catedral de Winchester (Winchester Cathedral) - 2015 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xede78f7fe1a1c5595938e3d2556eade10df577417e8d2c5382e25be74a518481. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/ES5151502614.
Los dos tan felices (Happy Together) - 2015 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x691e8f2cd9c55ece8f9a5e6ca8e1ca873d90caeb53e8ec029b7eb2e8da1cd13a. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/ES5151502615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02e8c8852433f84334f0ca795e72ab2d9c0b830957e900a9476b47f9180e747e. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/ES5086600107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5f2ed93ef88a9bec1733083f2dfb542be3b500184bae46d3c5e7ea8d9735692. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/ES5086500068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b071af58b3fc17003f7bd3c62595d8cf36926d6ec01fd46bcb0ef5b9930080f. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/ES5086900121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b2028d0d37f56136c3431b450c7272ada6ac1a4931bd2d31a00a1ba713e5be2. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/ES5080700101.
Interpretan a Los Beatles (Remasterizado 2015)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7636d7deb5ab256026015add04dc40bc7f78e64c5e0820afa0557293ae3416df. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/ES5151502620.
Los EP´s Originales, Vol. 2 (Remasterizado 2015)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f2a1b7b84ab49f1641145c05e5d5f2a91dd9f63f3860085de2d1940e208da24. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ES5379900314.
Los Mustang: Para Siempre (Sus Mayores Exitos)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d56a55e001b22546408a7e744a314dc9704d52f09402a6d997cc12242c4770a. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/ES5379900315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4e783505b31f0098928c07e90be9098d1b24427ba869a657aa6a28d4e771597. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/ES5299400034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd500630ae21781b57cce4ba46fbd293dc34307aabe666430363a1bbb061954cb. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/ES5299100015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe228b505aa448ff4cc7b84a452c18ca97e55555313b2ec5c582c5d00d44363dd. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/ES5299100013.
Spanish Pop Hits from the 60's (Live) - Los Mustang
Los Mustang Desde el Palau Sant Jordi (Directo)
Venecia Sin Ti - Que c'est triste Venise
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd10b7d33eb23ce583ad811c32c947208ab33ee13096f0b6ae797845b838787fe. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ES5299100021.
Popurri Mustang Mix: Ma Vie / No Tiene Edad / Capri Se Acabo / Yo Que No Vivo Sin Ti / Los Dos Tan Felices / Los Jovenes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaad399301555356988797b50cd2b4b686f79188d63ffba46d6acf41e2667ff9a. Chain 2 (Bitcoin): anchored in block 958706 (2026-07-19T08:50:34Z), 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/ES5299100071.
Pioneros del Pop Rock Español : Los Mustang
Todas sus grabaciones en Regal, Odeón y La Voz de su Amo (1962 - 1973), Vol. 1
Todas sus grabaciones en Regal, Odeón y La Voz de su Amo (1962 - 1973), Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe18cd46ecf25997b03cee813b933eea5ca8e487aa299b3c7bd9555a6c77e4b67. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ES5086800111.
Todas sus grabaciones en Regal, Odeón y La Voz de su Amo (1962 - 1973), Vol. 2
40 Años de No. 1 en Español: Los 50's, los 60's, los 70's y los 80's, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec2e4469f1843193df9d6ec3c615b2dc0b2862efe6e9f9135249730c3373f405. 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/ES5379900319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec2e4469f1843193df9d6ec3c615b2dc0b2862efe6e9f9135249730c3373f405. 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/ES5379900319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d2fbc4e44a87293da346a22b8359ca3b404a3e366f0cc3d98005834665c0779. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/ES5299400033.
40 Años de No. 1 en Español : Los 50's, 60's, 70's y 80's
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d2fbc4e44a87293da346a22b8359ca3b404a3e366f0cc3d98005834665c0779. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/ES5299400033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d56a55e001b22546408a7e744a314dc9704d52f09402a6d997cc12242c4770a. 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/ES5379900315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec97b7cf4366d5df4da8395d9fef1dd77d47142c688eb206de655f4f6c25381a. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/ES5379900324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x468d56a562e0a7b122760091364fe87be3766ee41a8b4140c15e8b21b6f81add. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/ES5379900321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x322f6914acab9a1c497a43841f9bcdbc662de6215c706b5cbcfbc20f11d33b3c. 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/ES5379900317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffae380a66cee4b2a48ff24d3db3b7b02a83327b9ff9280ba11e338eb3ee1af3. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), 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/ES5379900323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d56a55e001b22546408a7e744a314dc9704d52f09402a6d997cc12242c4770a. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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/ES5379900315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4e783505b31f0098928c07e90be9098d1b24427ba869a657aa6a28d4e771597. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/ES5299400034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79da7e5aab35203aa3f9c01714eccb185fde1e25db4c16c65d57b25846203d64. 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/ES5379900309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1833371cff411c8ef84631bffeacb9c9640268862a2b342702487a0a85cc4fcd. 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/ES5379900316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc24d7a03fccf3c0346dd8b912f82d46807ac5ecb99b140113674fc18bcf07e2. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/ES5379900318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d2fbc4e44a87293da346a22b8359ca3b404a3e366f0cc3d98005834665c0779. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/ES5299400033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d1b63d03fc657c726631ee1626a08d56e50a2e316a6f2e15f592a59325ae508. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/ES5379900313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd10b7d33eb23ce583ad811c32c947208ab33ee13096f0b6ae797845b838787fe. 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/ES5299100021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec2e4469f1843193df9d6ec3c615b2dc0b2862efe6e9f9135249730c3373f405. 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/ES5379900319.