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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53eee86e695c6e7c48b66dba4f605314157636c0df567b986b8e18b68727c969. 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/03bc213c-27d5-4b36-a3c8-6922be2da80d.json and https://artists.proofprofile.net/proofs/artist/03bc213c-27d5-4b36-a3c8-6922be2da80d.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ea54da203459b163380831c45da7795853481ef22dd21ab5ed3c23d40c931bd. 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/USHM21599208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaee58b381323c5337fc43c74126bf9f9d1705a8e5f030b8c2d20f37926236fd3. 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/USHM21599209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x780784cec45d5fa36aa334b9e44b4dfcde73ac851e62a2b746bcdb4ed641d5d4. 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/USHM21599210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e109c3749785bb304ebf55debf781846fa97cbaa989c0b8fa4f3c6eca817bce. 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/USHM21599211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x461d60306f60ca6eb5f44336bc1d2ea575c1af3175b259d59783615d879f1062. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USHM21599212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ee62374d418c42733c00b117694b60b7354f1f876d6953c99bf459b55ed152d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USHM21599213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd16f98afccc80aa02551a4fe52b15b2c74f9aeb6b09fe5ca731bf48b32624286. 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/USHM21599214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde738ac1f0944858f6a273e99a5171548df8ba84122290bae8f6a85e81725bcb. 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/USHM21599215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd4cf3cce07323872cbe3965808de9f419430db44573e38a8992599e11a94eb1. 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/USHM21599217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33aa95f82e3c2b14f07b4736462a243537bb5d046dec5f6a4eb3c05e5d2006be. 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/USHM21599218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71211a9590be58545b56df443ca04e0e72081fa79c43c73547ee6f6074762a65. 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/USCGJ1661897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e17d98846f17678e80863de3bc343e4c02cc3b7d357aee1b89e0619ccdf0e48. 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/USCGJ1661898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb7f5fdbde5a4946741ee4850b18f6ae5102943751af2e94da3e1b15f2c91143. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USCGJ1661899.
The Long Haul (Long Version) [Remastered]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33afbac4f4f2e203d5f0ca117e46078c6934ec5a7c484495802c32e53599c394. 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/USCGJ1661901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe34448e439a399bdddee3b8276e183fff9bc7d405079f4e2a59a731903ebe53c. 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/DGA072347613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x301b02d42db5b8d5b34d613bc3b93337fdda65cf2a828c879c037426708ed6ce. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR59R2043383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1aeb644606d0fb9edeb8a4284fbce3ce64acd56495f11b80bd9ca5d338630f9. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR59R2043402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x744b42e43e61398561bdd77774f2a1f8ad5a5a132249be401d8b509fc014d78e. 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/FR59R2050226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1aeb644606d0fb9edeb8a4284fbce3ce64acd56495f11b80bd9ca5d338630f9. 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/FR59R2043402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x301b02d42db5b8d5b34d613bc3b93337fdda65cf2a828c879c037426708ed6ce. 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/FR59R2043383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc70b3017a07a8e790d1704ceecb25724378cbf3dfd8019950e8a5cbcf8fead8a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USCGH1916875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc66514eba02fc2c25a6b282defbb96b26e7a7209c75fd6e1af700646ef5f551. 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/USCGH1875901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe182be0159234c32180e56146a9c90214d2fa9d5b7e272bd02055c7ae147f9a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USX9P1169520.