thumb|Wood ash Ash is the solid remnants of fires. Specifically, ash refers to all non-aqueous, non-gaseous residues that remain after something burns. In analytical chemistry, to analyse the mineral
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 0x7dd1ce26cb97bd9b0bad2907202981df2b54d27bbe009742c288cfcffc00484f. 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/464d28f1-6fe9-4366-84ae-f7ceec4de07f.json and https://artists.proofprofile.net/proofs/artist/464d28f1-6fe9-4366-84ae-f7ceec4de07f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Untold Stories (Inspired by 'The Outlaw Ocean' a Book by Ian Urbina)
Dystopia (Inspired by 'The Outlaw Ocean' a book by Ian Urbina)
Dystopia (Inspired by 'The Outlaw Ocean' a Book by Ian Urbina)
Untold Stories (Inspired by 'The Outlaw Ocean' a book by Ian Urbina)
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 0xc6a08eaed01bf3a7117e42334249ea5b093d5076452f09cd2563c50822ca48de. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QM42K2003618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa888dd07cef741c81a875f2f8a1223a117e86fdf49cd2db852692bd6f763b162. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/CA5KR2098328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c85a828d790e26126b677a8a1911da3d052bdf0e9620487267e482df061e4c7. 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/CA5KR0003494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c85a828d790e26126b677a8a1911da3d052bdf0e9620487267e482df061e4c7. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/CA5KR0003494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc71d0f4cac954eaf2beaac13b4d13002a476cef73633bb9f8b888f3fc0f71195. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/CA5KR0014241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2728c9e033d6684b81991725eecdf9476fcefaa8c9468edcff2ff1b12e9fe5a5. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/QZTGW2100097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf21da0c978f0930f67b566aa5dcd2206d9b134fac6d4c06250058b20bf81e19. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/QZTGW2100848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45fef83717003a7a2255e9ef42fd35a3be60aa591084d939ffa43fa917a4bd48. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/CA5KR2348370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb16a7f2313be2f0ce7fde2bdeb63cf7077796ac5a9c12b8e90dc5f4aee0fa7ab. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/CA5KR2379246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf76da23dad3add1191b1a4154f0633fd58abbbf15811f2fe2035d1ec71d7ba7. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/CA5KR2371727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86cc014fbd0dd3e67bfbdaf4235472d641dae23ae0ab6bb94f1102421e49b8b2. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/CA5KR2356745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda143230f6f58dc2efc72863f59996b15de5a745f28d03f75d5088f313866e35. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/CA5KR2354818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93bc7d095acf8e482ac3cc31b6e69959de06befdb5832693168b17472e7161e7. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/CA5KR2367271.