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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x581ebccd54e1d4f1d43d472e0e94746b99c029ba7e907e701b1385ab6c8feeab. Chain 2 (Bitcoin): anchored in block 953627 (2026-06-14T11:43:04Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2ef58b3b-e838-48c0-8f6b-535c35bc95eb.json and https://artists.proofprofile.net/proofs/artist/2ef58b3b-e838-48c0-8f6b-535c35bc95eb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Countdown: CLIMAX (Original Soundtrack)
The Countdown, Chapter IV (Original Soundtrack)
The Countdown: Alternate Reality Game, Chapter 3 (Original 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f122a121ef30a9dc567149e43232b1bbbe0da6f8f682214142d89ddd193c4a2. 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/CA5KR1940363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bd9117d58b0f2f14a6a00861333224a8a145e07d8af60c6fe0be9a59ca68147. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/CA5KR1940358.
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 0x8c01a4252dd19bdfbc75543d0ca26bdb9cfb4b84b6268521e8032b8771c060c5. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/CA5KR1940364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87648549246f0fbf9d25411869ed2802233702681b2bdb3aae8ba1d0226ac4d9. 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/USLZJ2439872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dc0780e75a4e3285879803510cae8c5cb63739c2b13de8702fd8eaf6027eef4. 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/QZS632231437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc287c9fd9170b9dd3ec4e6c9d2eb3f927e9aa886c2c0e4e019f6cee6d0c313b4. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZMHM2252181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9075baf07cf2d006386c704de45116cdc17cc86f3f55197c22b5e2aa53cc5432. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/CA5KR2240670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab16298bd0b544bb965f3ea69ca286c7ea7a9b1cefd0afe018ef4bb6bc593cde. 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/CA5KR2217543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d310570d65201fb804e81e6d125f0784dfe004c9e633d0e2d42704a2c0a7c97. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/CA5KR2168345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44cb0752b4e7cda49dae18a845688f090cf351c560115977ebcf6050c4be0746. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/CA5KR2168346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x835ac5c000bfd415084b46222b418e609d1aa823fb9282a4f98d207026c10216. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/CA5KR2168347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e2e9108e7fb4fdba757a29b33b9fa23c6b6e1c32ddbc254a7b7143a9dc51a76. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/CA5KR2081159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3f848092b9315e353bb7d1c2c92ed958c9b83c0e9fefcdd0b8a8ad2cb705803. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZKDK2097835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6972eb05a2fa8809574c87d2798eae1594926ccd65bd5d89365ab91963ee35ac. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/CA5KR1940346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63791f0dc940b085e80e69e69b596f8d44bc155c7864aff9127e89a4dbe4d9b0. 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/GBUM92300120.