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 0xc43c7c542130de811cc8f72e097dc4f45ebd51c5d0f116bb642bd59ab9318ebd. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/02b1414b-802d-4a1f-be68-90d2b0578185.json and https://artists.proofprofile.net/proofs/artist/02b1414b-802d-4a1f-be68-90d2b0578185.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The First Breath Is The Beginning Of Death
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 0xcf9732ec7e0c932cd21a4e9510265b1e8229202aa23a0473b1425ae36feb6144. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZK6Q2465885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff0e1b68a17c3664fd9ef796243885345379ecc2f63f1fe201a399bd85bd83f5. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZK6Q2465889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4f323186ee8ec11c7e04c0fb3a8e5c35e9ab5c52d0b4184fdbc678e1cb81346. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:24:37Z), 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/QZK6Q2465887.
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 0x1799a2a174abb2bfdcdb809e4bbe0905de4d16d43f1218eaddb1bd9b82bf5dc9. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/QZHNA2443781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x182259e94ce1649ba4a8e36aab1888e25399184f5280beccf17c630170c7f747. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZK6Q2465886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59e334a3c52fd824006838344e207ca27abd9703b0a7c01b315c8cc76e26cd02. 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/QZK6Q2465888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4263b3dc3ea8a684dfb52e56d0e8ab37f4583e56ced1be30ee86e721fbab9f2. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QZK6Q2465890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73b84c8b793c05038c5029d8b49a6abf610a2a7afb11dbd5d4dd55501c92c208. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QZK6Q2465891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd8d5cca56912465f62477b9b08e3c2789ce984562649a96cc0a7daf9116ca28. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/QZHNA2443251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ea8227ff19c5725bfee670a154226d0551c0a87d530a2f48edf2d8ddec38c7. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QZK6Q2465892.
Live Torture (Live at Ungdomshuset26/11/22)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x660201e18ab5dac733df60fa0e90100beb77b04de7365ce1cc42e58f4bc58ea0. 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/QZHN82385204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b8806fa88b54e507e1a81c401d394433839730237d2d961b07c50c5775974f2. 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/QZHN82385206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1de93aa7bc242f374caafc19558f7e2eda26093ec918a2fa30c6273178e7195. 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/QZHN82385207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdb20409b12ac52e5e80bdc5c3e850b8b9802581c98a711401e2c6ccd6904885. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZHN82385208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1822a57510734c84e5c1b310c8a22cb52287a9673748d1101359468a5f074ef0. 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/QZHN82385201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf79fd042072595d5ef0987da70b945435b454d6e088cba920b3b74bbe67bb9cd. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/QZHN82385202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89525d729b4f1f9b8be086b0a021816576c42ab83f5b833272a7a5814f2960c3. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/QZHN82385203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a271c749a52ab9b3810e9df5215cb39ee0cb23c29e031fc4e48527d2ff42d61. Chain 2 (Bitcoin): anchored in block 960384 (2026-07-31T09:54:03Z), 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/QZHN82385205.