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 0xe2328eabd18137519664b9f11e45f911abe4bf85975fa15477ef053ecd742385. 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/e547f8aa-a69c-4dc0-9917-9e68a8ec411e.json and https://artists.proofprofile.net/proofs/artist/e547f8aa-a69c-4dc0-9917-9e68a8ec411e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Papá, Infancia Espiritual Con San Josemaría
Yo Quisiera, Señor (Comunión Espiritual)
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 0x592568e0ad78083e97941c8758e4db6b0ea1213aaacd2702b69c546318605f1e. 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/USCGJ2227681.
Te Adoro Con Devoción, Dios Escondido (Adoro Te Devote)
Casa Manolo (In Memoriam José Luis Gayoso)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52971a04cb477af593ce229be3befcc739319da21b8107c6d746413607d761fd. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/USHM22205211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x075c84b446ffbfb77c4d33888503d6d060a27272998b9e3309a3eb3d71d614b8. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USL4Q2222209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x692d6008c3992919ad53ce54b47a0ba108533775e674ea31a87c721d21b667ba. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USL4Q2237275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4b6582197c778d4bd6afa0d952a21f9acd3d9cbbf51284574584c6f20a8d9dc. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/USL4Q2237276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3855fe7bcfd3ff2c4a8f13907c8fdb06f34163d61363c20f4ef0381c10b49d4. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/USL4Q2237277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb200156d90fc0c32d7bacc0d51cc5b270d21cd6a4816ab0e1c4124bf2b5f72b4. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/USL4Q2237279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b4ab77fddf99a3a7ce920f1d170c0d02f44af1a7e3cb50c7ed8a57ef0365b58. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/USL4Q2237280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6f9aec32fa3715ac2eb00d0222d576e94fb0308dc4d7dcdabb90470e2169aee. 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/USL4Q2237282.
Mira la Estrella, Mira a María (Andel Centro Educativo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5492674afaadea1100ec5350af173bd3bf00df044ccb8d411b61ec05d9a8b15. 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/USL4R2247517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb54d44f9e58664673adbd6f672f8b790f91083d0c91ef20a369ef8c88ece59c5. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/USDY42326657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8044ea4a05d47b4ab36ff288cebae3235af9aa8de848f94283668eeca7335b4. 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/USDY42326658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4901d14e29b96c3613258611710766309297d7f799150f325c1e0470ee039d6d. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/USDY42326659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a6af2f8d575666f277fd3b0bc313e11771c9bf4dddb67cef70723a5e0db854b. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/USDY42326660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1afadba18363bf01f46b5b8db034ba061617df169029f10bfe6b015d3723a07. 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/USDY42326661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x928b931b17398e027995483ba06678115145304c614c2dbdeb491b75cee0575e. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/USDY42326662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf58d9a8395944c9b4d5a54a9de09cdc3abe9843e6bf9237dcbe96f53557e29be. 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/USDY42326664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28e537e71503ec533ef355fec518336b13ecf8ee457d82d0893b393df4e6a2b5. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/USDY42326665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d5db6040bb24b4d34ba4c10124359306dd3cbc37bf1acc77831fa89657ccf26. 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/USDY42326666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b2a3ac807a1cfdbaf73195c7a2b083234e203db1d990a6f6004b9ac1ee77a34. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USDY42326667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x813e80ba7a32266b7ddc1b86f667c3001fa8e0564d5d2558ac846b5f5f2a602c. 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/USHM22346784.
Las vidas que cantamos (Madrid 2002 - 2012)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea57b5808a65d13a45b1dd0171afb0a75f65b55c2896b65c6f9a0e5419e54772. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USX9P2304494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24e9a96d203ef5a0bab7e3001180ff4f5cb5b65e80f09328a687b2c14e2a58ef. 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/USX9P2347061.
Mi Dios de carne (Colegio de Fomento El Prado)
Luces de Belén (JANA Escuela de Artes Escénicas y 10 Minutos Con Jesús)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c5f0a5237eb84d8014bea169630a3265f954536c64c9e575ebad41bbbcba98f. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/USX9P2340799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77d7201a6b4462436763ad73a33e57172b762985675354fecc356f3b369b0984. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/USX9P2304506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bae6d9765007a41787ed2774c9225a6f2ac4b82bebc3357d5006196eb2cf837. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/USCGJ2410693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf620dcf90ecc1fc613ae650e639ded44eaf3d72c962bb6ecb73640ea8d464dc6. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/USCGJ2456575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a83c37730c9d16db87a766aa36ee02bd8ff4db318c0b4dca92f0aea10d78eee. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/USDY42413695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaf453f52c4377b69791e943264027e531f93c78b9ab46d694c87336c0ca5d11. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/USDY42494736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e8797d45a95f04464f589535d14fdee69deb72eb9bb658a9451b65e18f9623f. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USL4Q2433511.
Cuna en Carabanchel (Colegio Arenales Carabanchel)
María de Caná (Parroquia de Santa María de Caná)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4939917e660a8633370312dc5873316cd524854338513f50ad2d31efd0609485. 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/USY242402639.
En Belén Amaneció (Montespiño Peñarredonda Colegios de Fomento)
VIA CRUCIS Con la plena libertad del Amor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4103e3772ae637d6698bd83a5d13207f29b8c55626ae50ffbf310874e3064577. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/USCGJ2545486.
VI ESTACIÓN: Una piadosa mujer enjuga el rostro de Jesús
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd5e6bae4d38e0e07cdbd80a35ed863d7c4925634277a1f62e4dde2b4692a044. Chain 2 (Bitcoin): anchored in block 957680 (2026-07-12T09:07:22Z), 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/USCGJ2545492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fbc3f25042732f30034f15bd18d3c5c427e7022700e5366809d845e658ffc4e. 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/USCGJ2545493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa976a65e81c4ae38a4868114e8129ba88418dfba1ba767038f5eda47ec11bb63. 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/USCGJ2545495.
X ESTACIÓN: Despojan a Jesús de sus vestiduras
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ce079f409fb73c876669bb02122b578095d9e3fd6de830bd814dc05af89fba0. 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/USCGJ2545496.
XI ESTACIÓN: Jesús es clavado en la Cruz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x183e2d694db334eed0baee96602a5c78af3cc57678d7c544bcf142eb4aba187a. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USCGJ2545497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc664008c10c0f8146816b34b18517fcb1d15c41609639ae4532c8fba8755cd21. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QZRP52574658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b66076d6ad1664d5160eddca5c352028c44497a709f2bc55f0eed8b566066c5. 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/USL4Q2528873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4006b7dd40af9565a4a78b252c479978853210667044b9ac958f9298719c2061. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T12:32:15Z), 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/USL4Q2528874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x921e27293ca1f7419061f36aa3d2f12b0938608c4a709d2d34e4a9fe18e12f37. 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/USL4Q2528876.