thumb|Burning pieces of wood, showing various stages of pyrolysis, followed by oxidative combustion Pyrolysis (; ) is a process involving the separation of covalent bonds in organic matter by thermal
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 0xd57d67ad4d57aadae963c40d7eac32f220d630e20a9f812a4dadc718b4ab2dce. 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/7572b3bf-369b-401b-904d-8f99b0074bb3.json and https://artists.proofprofile.net/proofs/artist/7572b3bf-369b-401b-904d-8f99b0074bb3.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 0xaad2b1ead09a36c61e8665347fb69ce85b02e3f885564643a8d9ffc03a9a6d86. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:50:36Z), 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/NLK3S1700583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fedefca2b98a6a3ed7bcd97cdec5d1d50548f20690b2a866d032c884fe413bd. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/ESA011938452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2547d021aec02690ba49b220de69a1469d8afd340491e109c40216e7bd22cf94. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/ESA011938455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2f450ccfa897ac158225e3be72f9ac34feb3b161b869abdaf3ec6d3ade5086e. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:10:27Z), 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/ESA011938458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33b43508125179b5c159ad40c20686adf9abb0f750c3534222d772620b91dbbc. 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/ESA011938460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8021697e8b265e2bc6b6c44b30083b5cf339c806a6b77263b6460786da3c03c0. 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/ESA011938461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x118e32d7e72b50f7e6153cd08278b934336d6c5eef8a7b3358301b176d9d02ad. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:47:17Z), 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/ESA011938462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f9134e89fa01ee9e9fd7fa44d2dfe09131a5b6e79142340bcc57281ac6ad10a. 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/QZK6H2077119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69447683494bdd272f47d5a317e55cc13cea7469b72a726d37dc68478574e7a2. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/ESA012258533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaea4e13994576ab9b0133a4c3e50d91a331ea306b9d68d440b9ee1d91c97dc55. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ESA122478466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa978dba3e54bf0cf7c84b8cf398d336aa3a0b4d3be79139e0eca37b90baf0b06. Chain 2 (Bitcoin): anchored in block 957705 (2026-07-12T12:50:42Z), 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/ESA122478467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x361e83bc6bea72a880a39494efe5661a3a9b03fb6c270c01d7f6e68bc0fd9265. 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/ESA122478468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bcaf8820a36f775ed2e8a7d947e16766d699a47d969ac0b68ad82515e0499b0. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/ESA122478470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6ea34a44c17363f064e230f8f7c0e1d2e146de181ce4226e5e2821cb66b6aaf. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:56:58Z), 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/ESA122478471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x196ced20f0b60441779f89dc1cc8be867dc94a26db5a1d32ff1d6b9a7960ba03. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/ESA122478473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dd8b9464f835f360f532776209ce36e02b778818d857c813415846449291049. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/ESA122447582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4a6e96942551ba310a60acbcd1e51825064b7a72de26732a74e7390a5cc3e64. 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/ESA122478475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b0f8176cd4ec579f1900002e9ac88c177e65f12856fdd198c331519e729656. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/ESA122478476.