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 0x673050162d26a2cb2e1b7422ee6af588855ea0cffc6f11f8487c9cccecc71f36. 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/fc89dd88-2798-4661-93a1-0226fb07ec0a.json and https://artists.proofprofile.net/proofs/artist/fc89dd88-2798-4661-93a1-0226fb07ec0a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
I'm So Sad When The Girl Next Door Is Sick
The Raven (Original Motion Picture Soundtrack)
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 0xe654efb72c38a573ebee303fdf3bb42787727704f210af056c60f8a7008eeffe. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/IT0312100046.
Don't Think About Tomorrow, Today is a Sunny Day
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0843add37ce1b56261d0dbe8d3eef528426f67dd45e0c26b028613ee28b1e0b5. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/NLE802100278.
I Love You, Coz You Look At The World As A Baby
With You, I Found Me (Original Motion Picture Soundtrack)
Davide Perico Game Music (Original game soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19ff5049a30e3798c9e50beacc03768debb9bb26329a0b59669b7d3057c7f45f. 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/QM3DF2255327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e81e0a31feb8fe2676ed5d8d373d7afd71f63bd711bd85a53d51754c0c1a93d. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QM3DF2271868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8a2e8573c8fdbfe42fe768031457f71856f90a29e439dc9784d965d76697047. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/TCAHI2353655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8a2e8573c8fdbfe42fe768031457f71856f90a29e439dc9784d965d76697047. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/TCAHI2353655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c7b73214ed68158e90dce0fa396fb8aef435528eec046f8e6fd7ec5dae873fe. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/QMANG2218401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cf978ba599b038e46b7407191f546f4f05686b930bfafc8c1a48207143adceb. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZPJ32314295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3dbca7a489dfe0d6b75c87010ee2e77a9a4580e854466c7bf8d7a3bd927f7a0. 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/QZFZ22323194.
The Cobbler's Wife (Original Motion Picture Soundtrack)
The Cobbler's Wife ( Original Motion Picture Soundtrack)
Glaciers, towers and things not yet lost
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8de6b1c75be0d85e0190bb0b3260f1dd0c67d7e30d0ba1d22fa4e71f8cd81d7. 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/US3DF2489040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x913580c91c2a22d001ade2266426dafd791a433e0f5aff9e9a7f901ae4ba0192. 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/US3DF2489119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67e034c153e507eb872d98f435692163ae229876300daf89842ee10c4133058c. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/USANG2418195.
Ice above and ice below, and I suffer inside
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92feff8711b8e8ef5778ca53ba3afa3ffaa346d8c15cb14834ce73b07b03431c. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/USANG2446074.
arrows for the other shore (Zarathustra’s prologue)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa8ea0b8641ae930f83316d8882f6edad47cd9831a5f9d4eb6303e106c7c6ecb. 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/USANG2447259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cdf512553d7abc1dad4abb591f4b2526e0649a3ae5fe6b10b0ef8fe8f10b6fe. 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/QM3DF2416613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15f24ac3d4aa6ee02d8b60b9f6292171201a49889432114e43c47e6d6f972e0c. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/QZ5FN2594668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30564ac4362a41bbc3f5d721bddd3b2a9c9ac848cdf5b9493391a03528734989. 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/UKZGC2501091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x585a5ec5a71246c07866e85a22205e64969348b6c2deccaf4fa736e7188b0a59. 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/GX89G2573494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32f8614b5b66a635017aed24eba437b3bcec35952aabe1051fce542aa83148c8. 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/US3DF2518043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb663ac641cf6f876d19b40fde2da8d11995d00c10675270dc475732fe04055b4. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/UKZGC2502217.
i dreamed falling snow and all the children were simply sleeping
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6703acbae9103f68bd9e117f277b780d1c88c903e3b2917b6c4e51bd4eaf281. 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/USANG2272391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c2ede6ab0753008589f9590ab4c13253d5a98a27f09d667ef749a6f1396d9d0. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/UKZGC2403604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x120e23cb73bdd3685cf42df5891d369d9296874cf3f051ea78271eef17d27fba. 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/QM3DF2270059.