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 0x2c40ebcae913e57be1ef896dd23aee3d8f412ef2c299d9d5cbdabb8e7b640ab5. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c7042c86-3b94-472e-97cb-f57b0ac60ed8.json and https://artists.proofprofile.net/proofs/artist/c7042c86-3b94-472e-97cb-f57b0ac60ed8.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 0x032d0c15e25e2f15594b358fa1bc19b1e6f370a229b476edba290a837b560747. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USRN11900064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24ce23ea9d43289b4c8e3cb5c9b62d80ebf1c690ccdd330ad04024abfbb95acb. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USRN11900065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d6b44037f068fefbcdfd4d903434788c757123ed80815f2f5971d50d89c9292. 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/USRN12100220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cd6dcd17d54ca3c9858e1f57ba1ca485a25b02db38432e10fe261c2ab182a43. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USRN12100087.
The Unreleased Album (from the hard drive)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffced811ca1b278f6d5ff3d8d0a0486400ca7d34c7be6ed89a6876fcdb3fafa9. 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/QM24S2406610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc54ba67812866338dfcc90c698ca9044a648ff04ac39efbed69e8d50d95008f4. 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/QM24S2406609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61bef91801e4692a619daffc212a37644f5a452e7d8b3af048fad056bd2dec7b. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/QM24S2406608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6d09bf8f1c54b1802447e58cbca17b140d74f58aefe6aa3bf5e6ecb8243e03d. 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/QM24S2406607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb02ca2cac2a31ab233687730d814157853fe8a5ecd617e43b0f098bc52f8d810. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QM24S2406606.
Dancing In My T-Shirt - Love That EP 2018
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfd2f0f139abe1d2b5a9e7e08ef6dedc2922617b00f393fb02be40ff59a481eb. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T18:26:34Z), 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/QM24S2406605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0baf1add4fb2fdd52e744c8d6ec9c6b980594c8356d47d45cb3cbb07b491edf6. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QM24S2406604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bb4df1eba33ca2fe29e0137b05976259e9d33c7f2eff9c719adc78a57c54b90. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:34:57Z), 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/QM24S2406603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2918a177864b579bbc698304bb41a5a5b217180d264fbb8a502a3e12c9576d3a. 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/QM24S2406602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x691b5326904839b93842dada171c603f26e164f7c20c83b0783dd021290e1640. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T08:33:37Z), 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/QM24S2406600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b3743834ed953a278983e16c5b497bdc403feeba4569c0248126544c819c1ca. 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/US6XF1800290.