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 0x18352e3f9566330a1424c2b0a30b22a57723cf8fb21377161b91860c84e07d66. 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/ea995771-a295-40d2-b3ba-d4b5df8b4cd1.json and https://artists.proofprofile.net/proofs/artist/ea995771-a295-40d2-b3ba-d4b5df8b4cd1.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 0x8858272a6321b945171ac0cf0f6ab3c0c4587d597d294f0eca7d7eb06d39e84d. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QMHUY1452164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19bb3ce6064dcdf49e6443ddcc45087d42ecece02adfbd816339515cd7e52c8f. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QMHUY1452156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6c289594f329bee5ed33b768590a399bd1f2a5c8e4534a485813beb7de83a52. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/USAGX0500528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb9836325b80226b0bac3517070ad4734f56ca5af1378cd62dc4c74c7f8b722a. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/USAGX0500536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f0ca15dae589c159d41df37f3cfb1d3bbe751e10dcece7736b6ba0090debad9. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/USAGX0500537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9c735af669cc666a19d255db20ab4aef1595c9c4fcf7822753f05e681138717. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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/USAGX0500526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe13a72b13a87defa1d369ba2a1739029b91e086fa6cf4017016c6050f2112067. 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/QMHUY1454347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7abcc15fd9d882525e55cd5194b360b601e578ab3a7a9904d0ee35f783202a0e. 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/QMHUY1454358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x363fc07085273eebe23cd9453104019d7d2e39e7184b99d87067b4f490dd7679. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/QMHUY1454342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85cf8e3ba33dfa16b83a32238c89a676cf412a02fa5bdba504bedd0d483a651a. 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/QMHUY1454354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf9272f3ab15fe2cc01a2ac6e9bd5eeca0e60f21d247c1cef1bd61980ae64afd. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/QMHUY1454349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x204ebc897d603809a0d72ea83b0498b1aad01f059808eb8478f33c8d08ffca83. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/QMHUY1454353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3dedf1c28f412fdf2f62377447fbc92a2688cbe21c8af516322a28bac6f6a82. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QMHUY1454348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ba3e83e6bc630df1588afce35f718a95a2f1fe3ff95311fefbe753b14e4336b. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QMHUY1453205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23ceef6f3504f32a2cc64116fc535d663b2b4148fdca599374cbafbc906d64d5. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/QMHUY1453208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89bba969c23ee66de87b98ce0a779c4a18513f4ad181d1c2c7f2dbd979d3d11b. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), 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/QM6DC1604070.
Las Clásicas Olvidadas Con Los YES YES (Edición Especial Del 22 Aniversario)
Te Falle: Cumbia Urbana del Pueblo y para el Pueblo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7a91df6123faa7a0fd2b6c6f3e7443e18edcd3b2ecbb61f1beaf95051de4017. 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/QZGLS1932800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25c9ad99c216a35110bfa5d22ce6eebda8f6663bab71d15fea93136baf552175. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZGLS1932802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x131500064f2da24961c06a685b573795b083274c40dba587fa69c928e0a3d020. 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/QZGLS1932729.
Cumbia Urbana del Pueblo y para el Pueblo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x475e623bac02434c9223ceb588c9fe140b1907c373e99b7311ec822d977e4788. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QZHZ31925799.
Cumbia Urbana del Pueblo y para el Pueblo, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3d722fcb22e38b4d4de78c910647af0bbf103345667bb94333b312d7e5f3f91. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZHZ41905027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd453b9816663910966c692f37554232a12b9266efd028766f41c04726c421f7e. 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/QZHZ41905029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b5e5cfdc80501aba1bcdaacf14ae03df462f12e98240f08a916816a4ef777c9. 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/QZHZ41905030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ad31f0cbeb7734109ea5517989f0c6779080227e908ca5830d97417783aa4e2. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/QZHZ41905031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4b8cf9a7b8641ece499f2bb8348217a9b636577c2cf42778b20648f9f301ec4. 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/QZHZ41905036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x377a29a3ca03fc5a885c4b30d57f02ad6fc4920abd81bae21a7f1b57bac0bde4. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/QZHZ41905038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7880fd3a2a9be62dbc5caf16b779d3b0a33da5586889b0bc18ea8b2196940440. 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/QZHZ61913075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f8a11761b4377caebe254bfd5cbc56a3a418cfeb5435af69555d8bdd3558d7a. 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/QZHZ32011873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe95fcf8c534f2a958e0f046ec7552a312f07bd0ec673ed26e1c2cc01edcea87. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/QZHZ42023304.
Voy a Borrar Mi Facebook (La Cumbia del Facebook)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b5172e4f251eb5e1ab4b3abbec7e934504a2b2eef720efebe30677a47ae024e. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/QZMZ92018913.
2a Del Verde De Tus Ojos (Live En Cuernavaca)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x061e3ca30d49c29e8b89addfd43ffcb344d10b2d6a3980ccf875326d9b329b6f. 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/QZDQH2267965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ceef4e15943af2a2735b9eae79c13e99fd17c61062a25038bb0db8405defa3. 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/QZDQH2270149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x600ff6bec23f06f0190ab6001fc589ec8f81f5a5398f0e9d5ee084d351480694. 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/QZNFJ2300940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeb527e18199ca65ca4b80f7472cbfa58beacc6f3b3bca9e9d13469fe487997c. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), 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/QZDQH2371117.
Negrita, Mundo De Los Dos Live Desde Plaza Los Gallos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dbfd60944cde30fd1322a0d21ddaca4a00fe581f84e293c1b9fdbb7de6b77c0. 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/QZDQH2399274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc22ca139fa17279d4fce79795b5fa6028a6e031ca9143abc03b2720b7f7807d. 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/QZDQH2399558.
Te Quiero Me Gustas Mala Mujer Desde san Mateo Atenco (En Vivo)
No Voy A Trabajar Desde San Mateo Atenco (En Vivo)
Te Quiero Me Gustas Desde Gaceta De Diez (En Vivo)
El Verde De Tus Ojos Desde Gaceta De Diez (En vivo)
Perversamente Bella Desde Gaceta De Diez (En vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50a0910f63dd0a810ec39f4502b1905434c4296bc1e5130c4e339fde028629d1. 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/PYC842419596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x485444e534cb67ec9e0beffaa71b17edb3f2f82fbfe3db6d5d87c0185850e265. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/PYC842420270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01174b225cb63ab76bba80cf18b3f73eda7d6c4fb540afd3945de6f4b5bf3f7f. 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/PYC842422005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd170a00cbf58ebb8287de4ba74fd3ab2370f9e3fadffd6a995613db285009061. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/PYC842506725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34b9e75b88eac8e32cd52c1ac6d7f73abfd884da4bd5204e012d29ecb65df95a. 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/PYC842509894.