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 0xca60ce0ecd0d300c052cf7eff3a1d5c1b45a18707cfda19f1d0900c4a978ae1e. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/37d80f54-92b2-4173-8ce9-020cf7afa705.json and https://artists.proofprofile.net/proofs/artist/37d80f54-92b2-4173-8ce9-020cf7afa705.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37af3b4928b66db8608ac55640318240932a8defc6d2c5abd13dcf4192a7859d. 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/TWBY71600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98995fc4ac3664091a437e821fdd6e7cc2d98c2a2620aa4f52a33fa22c96fc2b. 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/TWBY71600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba7c284c7fe403f6a3623a3cf5f83ad42f99fe4a4bebf26ef05bf05c52000db6. 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/TWBY71600076.
Welcome To The Next Level Feat. Teminite
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35ecf8ea9fbc077f6aba978fc55eafec37c8bdcd7d5077b947184966f59c10a8. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:41:59Z), 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/TWBY71600002.
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 0x2c52faf55435aafe0352c74ba813eacd02dc26746673ef3958ae544fcd58b704. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/TWBY71600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3034febafe7036b42b37f6b882c467bd8ecf7dc87598a8cd8f51cb489aa12ca4. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/TWBY71600007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d93b94c0988c26375baf94722e1688f65d201565d478be6f5fbfa4403cec61e. 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/TWBY71600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x174755a1cdba9c38a50e1de4428b28c6dbb5819873825460d787889cd2819c8d. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/TWBY71600009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9140d8a700586c240f20895e494339b78cc8e7988a651086fd01ee41f769a106. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/TWBY71600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34416b201b7e4983af39c666b74dc55b1d1520c029f3ff7dc22d5fce759ee6bc. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/TWBY71600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64091f88bf1e024f4e517dba01f3f5e6e4059fb8c59eaff6ca93778f8e2b66bf. 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/TWHG32300049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83919ecdb4e4482a85260dac65b3c7c2cf509a0b1f368e7ed9a1b971d4ec8016. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:43:17Z), 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/DGA092358973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a5052c2ca90c9f154aa23296c225175888a36be751dfa36b39df65d73804c14. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/TWUM72200066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bfec74ea9f3b068d572a50f3b71583880868f23dc62182e8ace3473389c4fa4. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QZW9K2387918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96159d0e9086ae7650f5c08ad715c0d6ff9785fef79e6e6266b1a703e72780e4. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/QZW9K2387919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd55688b4a8f9696b6dbdfb26582f564144dabaff35c75272e213368c2d7d9f26. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/QZW9K2387920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e9a9603243d7610ebb65d080c5275f6d8f3f2bdce9d8ddb8aa108e61a7a1e85. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/QZW9K2387921.