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 0x4ff0db690d16032fb72ba1ce96f647345492f7300de4a992e90a2e2d1fc9653a. 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/920b0148-ebdb-4a15-b601-27c9af89fcea.json and https://artists.proofprofile.net/proofs/artist/920b0148-ebdb-4a15-b601-27c9af89fcea.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Witch Opening (From "W.I.T.C.H.") [Cover]
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 0xd356ff34eac1e79989956550c509cdfe393a8d5ab39da1f1ed6f00b7a3e8b6ec. 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/QZPJ32372655.
Say My Name (From "Beetlejuice The Musical") [Cover]
Say My Name (From "Beetlejuice The Musical") - Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7acada98f0826a00303ce58ae7a1dd4adfbe507aaaf7af4b7f89d851c20535bf. 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/QZPJ32231304.
Futatsu no Kodou to Akai Tsumi (From "Vampire Knight") [Cover]
Coraline End Credits (From "Coraline and the secret door") [Cover]
Coraline End Credits (From "Coraline and the secret door") - Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c553f221792d9d1016b708718760dc6cae6bff8174d086fd5d248e1bba87078. 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/QZPJ32212132.
That Beautiful Sound (From "Beetlejuice The Musical") [Cover]
That Beautiful Sound (From "Beetlejuice The Musical") - Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ccd98e3ea955c10fa2868422ba26ce2dfeda6be1035cae412db71e3d2bc5ec9. 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/QZPJ32199273.
Everything Goes On (From "League Of Legends") [Cover]
No se habla de Bruno (From "Encanto") [Cover]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x046d1712c39cf0ff95d3d4df3c0480e1eb0e278e641bed40e11e3c67d37fdcc7. 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/QZPJ32134645.
Lost in Paradise (From "Jujutsu Kaisen") [Cover]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb328905adf9a365dbbee01e4138789c8536f4e0a6ff1f3d3e935dbe4558fd3c3. 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/QZES92426029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48cbf63f8e81b3d4823d4aca301137ab1f29a46ba71c9c19545673da5600c4df. 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/QZTBC2324379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x989b7546375c373ecf6517bd129f72d33bf6ade76b8eff788365142663769c23. 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/SE6HN2481926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b6b5f4c912e6b9245a68d6ccbd44e64349f0e3475c8d74d09d83da26ea21e79. 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/QZRP52351535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae1c61e7cbe0fef25cd5c49c6309188b3144a1b89aca86edfaf4759dc71f15a6. 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/QZHN82137301.
Creepypastas vs. Películas de Terror V5. Gold Edition
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca0f37e6d6551aeef9577a126398947b5affe6ba083fb36a78788946b162a550. 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/QZWFQ2302960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1bab80def3c07054fa0ed827b9fe695ab6cf893eb06ed2818ec813fe306f6d0. 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/SE6SA2210542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b4bda976c824d1d38e667d78ebe8dc0dc0fd55a9c405b68403cc8c55e56af9e. 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/QZNWZ2118197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe97bd265c141d65781e2c2c4fa3b0a0a1bcbadf0c9516c91499165a4cb8d572f. 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/QZK6H2103501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47054c7d5a62c386a02a2aa07a91f02860fecbb66dacfc69729e8db05dbdd6ff. 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/QZK6Q2113849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4b21102bf586e2e751ad4058274a87e7936181ed3f82988433abc9594e6f343. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QZTAX2272626.
Creepy Old Guy (From "Beetlejuice The Musical") - Cover