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 0x19203568ce05a3fcfb40fa797d8eef55cc0582223e2049dc62465d510e04fd64. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/91a0a14b-9009-442f-9791-1629b2cbfe15.json and https://artists.proofprofile.net/proofs/artist/91a0a14b-9009-442f-9791-1629b2cbfe15.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 0xdc26cb30fe65aac06b4e6fb2f60a40b965b982cd79341376ea2ccb72c37f5e27. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GB9UU1400034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9113a3fa5bddd0ab3664e786122c2cc2734bf7b425201ef9edb37cedcbda7bf8. 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/GBUR61600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aaabfe104d696488b09ff3d2806b2ca45c464e77044bba75320499476717030. 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/GBUR61600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9655abdf4fdbe9a4c35fd14512cda7f0e4ce5489e079bbd28dd583d09d6c44d9. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:42:49Z), 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/GBUR61600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9113a3fa5bddd0ab3664e786122c2cc2734bf7b425201ef9edb37cedcbda7bf8. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/GBUR61600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aaabfe104d696488b09ff3d2806b2ca45c464e77044bba75320499476717030. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/GBUR61600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc49e3616b699caf3442f8f2bc0ca17888fcda1c44bf5d2da96d191a32f65bd13. 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/GBKQU1615572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0604ab2742594c5156a5737d0ca29bf69f68c753d0bd6e7bbb7a6c5d8b16c1db. 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/GBUR61600067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0604ab2742594c5156a5737d0ca29bf69f68c753d0bd6e7bbb7a6c5d8b16c1db. 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/GBUR61600067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70339e26861764655beb8fe5a2189a5252983de298b152e01cc3cb8fd730f523. 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/GB9UU1600067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c3ba12b9a50ed9b3bb644bae58ba270794371ad35a1f0657a6a4bf5bf64d86a. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/GBKQU1872866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd531bf1d0e5a0a8bd3662df8a30917221374690d76e0ee18957e562b7c953ab6. 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/UKR6V2291552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb57306fdf992d82bee8ac668b8e04f0c33d5c9ec854e40960883d40917eae674. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/US83Z2339592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd646b0a984623fae1292dd1c0e7d0aae967adc50e347b2f7c6e59f9601b4459b. 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/US83Z2517014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cf38b6ab09a0ca45b70bed3f0a0068e598e4f780d11fce3a113a713fd4ab7eb. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/US83Z2517015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a685eaf561553a6156245aa5cc45968bda1aa55f91a354b556a6e902ab23459. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/US83Z2519721.
Chase It (David Granha Till the End Remix)
Chase It - David Granha Till the End Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d173dd3546dfaf4f5aa26501bd5ee489090c7b0abe0d4f26ef5fb43d16bc269. 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/US83Z2529701.
Hook At The Border - Paride Saraceni Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab0220a6cdc22e5cdf86d2961b213d8568875a12311dae9afbd2c27f0c505be4. 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/GBKQU1664548.
Hook At The Border - Paride Saraceni's Stormy Dub Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcec24ad2a5a43c804657097a672fcbbe8c2137eda39035d6ea8a78998b626b30. 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/GBKQU1664549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc49e3616b699caf3442f8f2bc0ca17888fcda1c44bf5d2da96d191a32f65bd13. 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/GBKQU1615572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd945e312b46451bbbb461fdc19b49525d8cbd8b6e8a0d7d60c967c52f418486. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/DEKB71436710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16f9f893670c02ff2bcaa16f205a4bd8f7d332b2f2950b788029cdf9acbd432e. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QMSNZ1508527.
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
Global Underground #38: Carl Cox - Black Rock Desert
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7443bd3e736fea78a854a0e63c97110d1eb3a2c4e7198a39f8dad1ef6f407877. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBHFW1000023.
Global Underground #38: Carl Cox - Black Rock Desert (DJ Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1f93f0207bfe60ee14f3e2e82b7800b4a62af7a325f3b5bbeed202fe050565f. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/GBHFW1900301.
Dirty Confessions - Paride Saraceni Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17ae6628ecf16d3c1076004584739320f0d6330958e9df5fc2524b4b51cb9794. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/CA5KR2506397.