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 0xd2fa33c0b3ea4ed239076168ee81d0f11a698f4579c245a912da95f8c97fd0c7. 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/2b8f6b46-2197-4e75-a369-01a05cfd449b.json and https://artists.proofprofile.net/proofs/artist/2b8f6b46-2197-4e75-a369-01a05cfd449b.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 0x8448ba893e792400e4bd7cd8880fa13179ca3e2dc79d44f85ea2150658c0dbfd. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBEWA1801771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1319b69365863b409bdafc44b748f928c95c4f184733ce0b51ba3c12582b263e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBEWA2101364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cb01c3bbd515d2752ddc8dcfbc122d816b47848052ce846384226a5bac8ac43. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBEWA2103050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf324f2374eb44b016e60981a2d84b57e177f06b581e138676904afb00162fb0e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBEWA1501972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacdc82bb0ab316977b1cbb60202fdf9ce1e1aa3607b70a618609d4dc1a23a952. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/GBEWA1800917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0dd1dc3f6e05d8cd090ad66c869e19dfc68318642ff764009d1a56f99bfadfb. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/GBEWA1801253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c01b367380d3cc6626a107ee8b137f735f93325d1c4354139b2729bf8ca7df6. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GBEWA1803368.
Will We Remain? - Maor's Extended Deep Room Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f19694e09c72dfd30d9045653206080301e40a63196a9b0bd1e8ca4b8527cb3. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/GBEWA1803378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1319b69365863b409bdafc44b748f928c95c4f184733ce0b51ba3c12582b263e. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/GBEWA2101364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cb01c3bbd515d2752ddc8dcfbc122d816b47848052ce846384226a5bac8ac43. 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/GBEWA2103050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8e0cfc9755ad5ea725a62eee089466651a695387126de24906f18d04764c6d2. 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/GBEWA1905395.
A State Of Trance Year Mix 2019 (Mixed by Armin van Buuren)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bffc956a41cfc69ccc313870698b004417e2fc730c7bb4ba3b264791272ed8b. 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/NLF711912923.
Will We Remain? (Flashback) [ABGT593] - Spencer Brown Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1a81341b481a1193165851e7dc6cab4e47c7b78d23ea324e2203ba1dedf0615. 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/GBEWA2404652.
Group Therapy 300 Live from Hong Kong - ilan Bluestone
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5a861936381d75451e63cd2da7d95f946f2ccf81c2630e408c8251b89974fa9. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/GBEWA1803127.
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 0x9b8a509e1cee62469930cbc1ad4d4311a21c4ba110655a206aad9fd080f8ccb0. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:23:35Z), 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/GBEWA1907200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1f51fbdd52546b454f8211b42691f9ea9b7e0ae0cea99de74ec599b478be419. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/GBEWA1803129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x626df0dc58bf0230a21cde375ba2a2df2de66be7f65a8ea4e59a4135dbabaa19. 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/GBEWA1803130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6538d66fc64cd894fe29a4d71819643c5c689ccbed9d97e29e1b535ae827fcc4. Chain 2 (Bitcoin): anchored in block 960349 (2026-07-31T05:23:41Z), 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/GBEWA1907201.