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 0xdec38a2a4c14a24a6b137288789ef95a227e24099bf0fae3e9e8e78d5b661f76. 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/557aa752-66dc-447a-94f3-5b23a165facd.json and https://artists.proofprofile.net/proofs/artist/557aa752-66dc-447a-94f3-5b23a165facd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Lotus Reverie First Nexus Red Tracks (Original Game Soundtrack)
Synthetic Lover (Original Game Soundtrack)
Our Life: Beginnings & Always (Original Game 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 0x812bcda67945d4d4ed36820394a902ce8c420fcf1cae994f592ca2174c1f861e. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/QZTAY2240165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4da9e8e43906dab03fe1c37ccdd6274513519a88dd92a281d58be3b54220a0f8. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/QZTAY2240167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6013fdb034bb4dfa54baa12395b4ea5944405e69d02fd6d684094930564e4a6. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T15:40:09Z), 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/QZTAY2240168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x793c46ef143001689eccf7363964fc28e7554586358ec512fec0cf3ca823a506. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZTAY2240169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6acb8876795312d3bdecd3f35cc39e2e8f89717cc781b14325723f7ec3784eb. Chain 2 (Bitcoin): anchored in block 958776 (2026-07-19T20:11:59Z), 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/QZTAY2240170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ed99621fa0b57da0d911fd6662c82c78fab92a3ba221074a1d6548b20fd7bc3. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/QZTAY2240171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fa7f5ca684a8c3c16194f205a2ebcc42eaca28a6624bc3f50d7b23590a93bf7. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZTAY2240172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99deb4368a229d479a71d35a54179cafee2b08b11d2f6fc4b33827e312ca4047. 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/QZTAY2240173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7adc82b1864ac2a74429478c86a0a707b3f4a01239ff2cd6e4d0953d0184b747. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/QZTAY2240174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e32c22990180e8809befbe706fcc80c624c016a5e4e449144132c7226e19aa7. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:27:17Z), 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/QZTAY2240175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab3dbe6f28ecccab525b7ce0e0005c08d20251fa1391e6d0264949102265e20. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZTAY2240176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xace279933f961c8930e69696bf954265935a284d874b39e71e909f7c35e6ed49. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/QZTAY2240178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63875d4be263aaaf11e14d8283ca1164bac26cfff5132c868961d0a23c2b87be. 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/QZTAY2240179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6611375c01d2464002756028a6b3a87c5ea2db2d97c2beb5afd3f708656417f1. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/QZTAY2240180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd48ab1e0476db59bb8ff2a1fb8eb72c1c383409c09dd3a98824193104401ab0d. Chain 2 (Bitcoin): anchored in block 958697 (2026-07-19T07:58:24Z), 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/QZTAY2240181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b05ed483499157865ce68628af54b34b50b89e9745aea9db2242c594c692b15. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZTAY2240182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4778d6c852a788b03dab786eac952df002c4e45a1dcef67aa66e7ad64dab8d6. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T03:30:33Z), 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/QZTAY2240183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37e4a219ef5168e2e8f93db84236e7c7d8fadf5ce403fde4520699aa158b1327. 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/QZTAY2240184.
Jack Rampage and the Disasters (Original Game Soundtrack)
Waning Crescent (Original Game Soundtrack)