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 0xff3f7943563eafc28f8ea981e824febea6d8228b1a69aa022b9720fde2466e4d. 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/ecbcd095-4e87-4ee8-822d-c11f0eb2b4cd.json and https://artists.proofprofile.net/proofs/artist/ecbcd095-4e87-4ee8-822d-c11f0eb2b4cd.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 0xc13a01d30b3eb105f02b658ef19476a52c0309d819d1598000afb95d7613bad4. 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/NZDR01000022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42d0d32b51a978d255e5ff39fb2c923037786ef728749d401e59508d43ddd96f. 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/NZDR01000029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5534a53dacce6dd4c021209d2b5da5f67c1a60cc8c9b82ddb0395cdf77915232. 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/NZDR00900021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcde64ed56d855315672ca00e6e68088b81b406b7b7659f6c7c89a54b51ba825f. 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/NZDR00400032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1213e4fde04c9f7855aa1399747beb20f45d312a652b85afdef1c0d8926dbcb7. 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/NZDR00400031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce15f281f4ad3aead44883044ccd7d06909f31d85b17ae9abaa8b4a6f86ce69c. 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/NZDR00400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc218350ea19ad359c99991a238d1acc4a8b2953a1c8ac9619db8aeabb0949195. 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/NZDRO1000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c1e3f2c2798bd0617a7d09f9c79f5780da36f5ffb3c44583a5f3c7be6fa1e08. 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/NZDRO0800043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa32b809c4b6b07f998700cbc6fac96c9a06dcd45be8e0aea2c89c1aed50e57ba. 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/NZDRO0700079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5eb97fd0abda1c79908c585befd972be83f3f07b78b8e70e2e79e14b3b11ece. 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/NZDRO0900014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6799673bfa70d46beefc79c955bc8b90ade3408eab40b6741c9ddd83e5b82219. 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/NZDR00400002.
Dawn Raid Entertainment 15 Year Anniversary (1999 - 2014)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6799673bfa70d46beefc79c955bc8b90ade3408eab40b6741c9ddd83e5b82219. 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/NZDR00400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbb0627422571a6c59a3c8088915222a576b0f9334ba1b59927046bc97026479. 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/NZDR01200068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb79f491c7c44805100b89688213c34245c5c130a4f495802bdbdcb2270c8f3dc. 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/NZDR01200069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf93c3cf998115475b515c0f523c34bc1656f3c872efffcb74170f9c49277b452. 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/NZDR01200066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d2cf07924409b80486dbda5f6aa63dc99a315b530b68ce5e03e9626f106b8cc. 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/NZDR01200070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9440f4dc8ea0d612d50c31582243a70357f586dbf6f9cde11d659fca421ab8c0. 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/NZDR01200075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb474130c4503945e8ff50694cbf965578d979dfca2dfe2fa87b040733eb983e. 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/NZDR00900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2608718bb8f7c2ab327b0286ee3fa8d375831f3cc98abfbf77925d93eb094d66. 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/NZDR00900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4c5a86c89a690d6b74897b0e93cbb02bc9eb5d21028db31b6e01ca9e5018f0d. 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/NZDR00900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe246f5a92f32338f7e1145d30cdbfa8d2408f4309e0b40a46b9137ce42c0bbd9. 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/NZDR00900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27e9d68410d18a4121638e4ae483d3b309d0a400263a2ae0c5b98107abf29850. 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/NZDR00900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0878df2ac9266e7f2a6175dee3391f25fa275c55fe4235f53e53e4c620da869c. 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/NZDR00900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ae79266f531c7e953c4c83230831240222ae8b20f25be6e8576033203e63f64. 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/NZDR00800017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d860d794afd8ad3c7bfdee0e16044fdaa99ab0e10dceea23b2c2c0a26bd249f. 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/NZDR00800023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d44f5c95feed74df24b7a251b208c089f5243acc11f3fa533d7051f151499c1. 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/NZAM02201261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f7af4581598e5981cab2fcbf5193dae96280ca5f6073d6b914abb933548d6ab. 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/NZAM02103830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc46204b87e94049cf8130de94235520b5cfe1762f1b9565cf4ed8b8a36980e89. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/NZRI12001702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe50974dfed2d0b52663a823d4c70a2148921cd9f2bb406abbdee2f2c8c4aed6d. 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/USVPR1400234.
Villijah Nation, Vol. 1: Element of Surprise
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4535b7bb22639e1d1b76ac086a35ada7cd77e832947bef57db692eb97bd7f917. 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/NZDR00700071.