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 0xd0d83ff0ee9f86432d874e61a23cbf7a54ae0fa75b7636adb745a4af5e793736. 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/717cdaa5-6571-45f6-86e4-0fa1c621de3c.json and https://artists.proofprofile.net/proofs/artist/717cdaa5-6571-45f6-86e4-0fa1c621de3c.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 0x26e817f69fbb2f6030cbbb6ffbe0012a536484c8ba28993df151072c83faaf57. 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/QMZ621110024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fa676ccea580ada72917e06f49701229c6cff6dda8ff6c63460283c6948c046. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-21T16:31:34Z), 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/QMZ621110025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ae2ec69b25623e4f996eb4318bebf30e5662f38f85311317cb88aebf6947495. 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/QMZ621110026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b498015a7e7fb4017204d0d05b0633fbe6dd1a9815daec0a08084ce0cf48e6c. 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/QMZ621110027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0036ea7647490468bc6195c340739b766c56795916fa9dcb13baf14358ecfb2f. 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/QMZ621110028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99b5b9377ec601977797742b948635f45d7ec238992dc95b19b7474bfb4d2935. 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/QMZ621110029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3691c2cd944cd514281bfd3edde87aa801fb7be1a2b6906556ae61ee1392ba3. 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/QMZ621110051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe34756a2c67466fb61a41648f49b916e21714df056df849405fafb54846b8790. 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/QMZ621110177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc55ca67fc8a82105eb7f5516c76385e6a1ede5e90c796186e114c9c5d599813. 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/QMZ621110178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9424899034ffa33dbed4356521b7938e66e50479ac378157cbb6a208dfe5f9cc. 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/QMZ621110179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x589aa1fc5eb9c51417b576f384fcb083ab02256f0c5766041a04a9e4c7a09fbe. 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/QMZ621110182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a1812c25c6c6c87b7a8e0621f422e64601b0e377ba7d78be1bc0c700dc7827e. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/QMZ621110185.
The Ohio State University Marching Band-New Era
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x579025e242a259e8490d03800712cd6bbecd58ab79cdd5278fc082f28cd6ee0e. 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/QMZ621110245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38831e9d48fff4118bb8751785877d41669f1b498bf278ecc15701696472f237. 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/QMZ621110129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a7d1e87c6e15fea000ed156c85335d58f1e7746366c011cb5a644a816d8017d. 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/QMZ621110164.
Buckeye Battle Cry, Across the Field, And More College Football Fight Songs from the Big 10
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e85d9e33aa90f48f1dc7f91d269523c947ed72bb086fc45eedb0cb51882eb4a. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/QMZ621110248.
Buckeye Battle Bangers - Fight Songs and Hits of the Ohio State University Marching Band
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cff7d81d350c71979637861bafab48d182ab567fb2cacd685932ca83b78ceb1. Chain 2 (Bitcoin): anchored in block 959011 (2026-07-21T16:10:47Z), 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/QMZ621111157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa09cda67b9bac9edb45ad01c0289dde7b6d216479ab546832241e58390c17360. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/QMZ621110203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e6e00e7986d972196467ad9b7de80d6f163dd19bc8cdf7debc36cbc1fa22384. 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/QMZ621301183.
The Sound of the Orton Hall Campus Chimes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5666b21c8478cb5d5ecb078a755a975ca4301593fc602497560df0a185af44f. Chain 2 (Bitcoin): anchored in block 958889 (2026-07-20T16:02:03Z), 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/QMZ621301189.
Nintendo Medley: Legend of Zelda, Kirby, Pokemon, and Mario! - Arr. for Band by Brian Sadler
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x815ddec77237437896877058aa391dbed804bc30a34da300c9e4eb55fd38b8ce. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:46:47Z), 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/QMZ621301191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1a3f61428eca2ac3fac0fe4c3d1ce21f55eee536789a77e7b417184f258c4d5. 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/QMZ621301192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x422ab5210e55f3a922df968e0b7e2e319bddbdeaff256d83a274160bdcd60c79. 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/QMZ621301193.
Music of the Night / Phantom of the Opera (From "Phantom of the Opera")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c65f234905820a270edb4bc6d82e564005839e89d5db92cd2f04e9b86ba4429. 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/QMZ621301194.
Wishing You Were Somehow Here Again (From "Phantom of the Opera") / I Dreamed a Dream [From "Les Miserábles"]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b7574fe508f1e9a8c09e4d8ef5ebc4616c425711973fa91701f26aa8fc3d2f2. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/QMZ621301195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1ed53d80cee82a8c07119ef4d6531c182edafc09d3b926bcc53e2e99d4a23d3. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/QMZ621301199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde0b876c792c85d8c2654737a98265982995c7be7b5e33db3b501f646eab0fdb. 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/QMZ621301203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc61e99b2628a2b4d1d40aa3942e7866b7080826cf0cfff192da194464c2d739. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/QMZ621301204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf368777eeb0fdaa911664c3cf93f20abb1d2e911771a001052b7e7455e329674. 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/QMZ621301206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65f1d3745e6c97e79d6494db33457ccb83e22c7c03a155cf00c7b504991e5424. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/QMZ621301207.
Road to the National Championship, Vol 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb011a7bc6ea5bdfd853f2d05d8b15fbdfc233f0f408b641a818cd7d9d48eaa94. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QMZ621600462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b2bc3937e45c34259c7e568770683468b50a775c472fd00b602a8ed1e7d6c12. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:51:42Z), 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/QMZ621600465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb17a751c8b33f830e72d5dfa11d8e2aaf0045ee7325d5acb91fb529749e3c25e. 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/QMZ621600466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21dfc66af5f03292929c911ad928bb128edc8d6ae721331cbabeb0eeacc9fcc3. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T03:46:31Z), 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/QMZ621600467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f8eb114f88d5636a2a9379058ffca21bfa780b201e99df455ac132fa9a29dd5. 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/QMZ621600469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2de893baa83efa207034570ac41b316d4eb2f31b6aed4b2210e1acd32f853dfb. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QMZ621600470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc69e7cd5b67f57d965c6b2ead59409fd78486a00247f910ef6dc6601c9e5b046. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/QMZ621600471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x216154215779f631c5c13d07605c4c002bbf69300d6e8e1b9fcdba17add62ec4. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/QMZ621600473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aaacd6022c99386bbb5eedb494e7aa50d8379351faf6e38ef8dd7cece2b9972. 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/QMZ621600474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3d889261f88b87865fa832db4b279bbcc05daf30f2c5c10e14936ac33e60d3c. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/QMZ621600476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7b8a8d243399498ca44ad9385942cd575d44615987bf6f998db522611b0f9a3. 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/QMZ621600483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3837c136350413f946afe471ba4cdcbac00f119d519b52b367682ef83752f35c. 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/QMZ622000068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b4b9afc5a7d04eaa7832b4903742594889b366ecf3b00a68c6be9525e137180. 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/QMZ622000070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b7319201b3a965f1c0b4fc90957c5317e0e9c3ccf52748712c43554266c999f. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/QMZ622000071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b4e17e2505d2bc5f482134c22c966dc3304612aa371531534eb07bbe804ee77. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T02:10:44Z), 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/QMZ622000072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1720d0d0a6d0b22bedc399ac6fa6a5804bd2344c1af0a6f09a79f94fc02a2a8. 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/QMZ622000073.
Live and Let Die - Arr. For Marching Band
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ac73275b3b1fb69bb1da0206fe146a854db1acd6b91238995d28156e3ed079a. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:56:04Z), 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/QMZ622000084.
Defying Gravity - Arr. For Marching Band
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e783aa200a5a843d091e54a9fc85de9ffb4c27216f40b05129e6dabc821ae72. 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/QMZ622000098.