REDIRECT Music of Deltarune#Deltarune Chapters 3+4 OST
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 0xc85b16157eb7eebb9b1bf20cff7b49db9f9df5fd317f429b3b80e474ac251d1e. 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/b9446d3b-0e49-4f39-b398-d79053579a10.json and https://artists.proofprofile.net/proofs/artist/b9446d3b-0e49-4f39-b398-d79053579a10.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 0xa5bf61c0f4aa16a457770cc8301e7457f19b599118adb0747568589551ee76bb. 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/CBAWA2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2550cf2bd586c7a1a0bf5e93fda81768568f756595958358b895f76a00136cd8. 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/USUYG1130557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58ac7a5d745a788b776f66d0591c0fa7e202ee518d39037e093c56182cc5651b. 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/USUYG1130559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a088e9f2859d7036c407b08259aee24691829de672eebe01cec6f85d3e3efe3. 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/QM24S2306750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x605d48dca5293923c72a87dfef533911eab9f984c5f1bd264a55b8d4d2ebc5d0. 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/CBAWA2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf46b029ab5564d6b85e412e0d7ad82176bb76b3fc7ea68da924e31dbd6328b. 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/CBAWA2200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44d683c177ad0403767b2e8bc8a7c5a15ebee6cf9eb26799b5713cbdeeac1b1a. 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/SE6JF2000109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb00a9447188155ca8375f6d5469e36468c318c6e0fff97371510cc541a46f21f. 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/SE6JF2000102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19eefd6196cd11103e58e6561efcc8b9d6b310363a5427d80832975c249c1ed0. 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/USQX92003940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f9671bb03f70a01a0911c2407a6fd598256daff4d0d0527a48b0ab97224ff72. 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/USLD91729022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0ea8017d839f22ce98421d0191ab0b103be943bf35cc65596ed069bc498b98c. 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/SE6JF2000103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb765f08ceac94638d9bd6bb515502b9bfd7cb21cde5f56aca6dfffd4d9abb8d. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QM24S1910395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7854951e06d52a4dfb28abf7d6d8b95ceadeb8dafb4b855aa0af0f5428775a0d. 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/QM24S1902021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd19d67af499888cd1a8b0468af27547e88f6293c62547ebddbe2cc81dea671db. 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/USUYG1180203.
Where Will The Love Go (feat. Jamie Fine)