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 0xe01c0d9af6d844ebaa55f08bf634868b4887a4ec8bff0d94a51779fd17a2c2ff. 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/244a7c75-9048-427d-89e3-bda0af69f04b.json and https://artists.proofprofile.net/proofs/artist/244a7c75-9048-427d-89e3-bda0af69f04b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
ASTRO BOT RESCUE MISSION 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 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 0x00c1ac029fe9c6d8b5340f5e84be02a738958648d77ccfecddb07234221d27e2. 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/JPR501924519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x347bd6576247a2f665aa7db8ea76cd71681f1789811d27d5f094cd1c5ca84cbc. 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/JPR501924522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77a1d5a88585ce2d1a5d5fcb9f691e449f9f0e59d1797bce30bc86b60f7969db. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/JPR501924523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4646af1bebaa6d9430f5556e97b1b5347cadbafb7ebc49c91ec746ee7003960. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/JPR501924528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9108fe1d3e5f0c7ec39225ff1674161fb273e7fcfd928c9761088fd3b22c954c. 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/JPR501924529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa34ff62f18a87bd4c1ceaa5fea8d653dae57b69a7859a18a2e7d8332a0d0a39d. 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/JPR501924530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba90b98f4f0e511f83d147788228fcc6b721de33e8b01de74ced0c702aefb306. 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/JPR501924532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fe2124c1c69719b264efe8344f3b2d4b584a613397bfc27e8aa15411c4d6ecb. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/JPR501924533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b6988212ad420bdb74827779e1a34a3e55626ee9de2ab50862916ec7980a8a2. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/JPR501924534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x313f65bff7cca05d92c5f7dd1b7ffbdf2939a995445ab2252927346f77acf41f. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/JPR501924538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9c5f8aa92217cf803f66f95120278522d5f9f7767ab76e9bd346c81395ffcb9. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/JPR501924539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68bff9f9ec4aaa7f0bc7086f2855f76cab2fa0d7b1e37c0e34d21761e745cb8f. 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/JPR501924540.