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 0x6d16b5db0e2a65b3a70a05b98189beed3ec489b8e8c080c06e480bf73ee78097. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a5187a67-855f-4d47-bc88-feead8773488.json and https://artists.proofprofile.net/proofs/artist/a5187a67-855f-4d47-bc88-feead8773488.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Clothes I Wear for the Space I'm In (DIY REDUX / 2020 Remaster)
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 0x53457c8ecb2cddb640f7e73788705c05cf839bf473ef22b6f12db0dd3ec380cc. 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/SEYOK2055890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3db66fe0201684945f68e9781fe66dbd5fe68871bd4ac7cf05c347cd93004e3e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TCAEH1927735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6593c68ce0a2259a7cf51a6d231eadb8eb3a410c67acf4f22f056d4b89277f8f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TCAEH1927736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa2161c3bc55e1252f91fb15334f9c30e05b926f4c323a278fb35600c9fb6963. 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/TCAEH1927740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb03b562b1cb28d15a9ec97d433a5e2a6150b8c7a65915834a1626710f4aa7dce. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TCAEH1927742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd9804f6d0b2331cbff0165c2c15bded34c534069c2fdfa9b0e7d852e841c998. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/TCAEH1927737.
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 0xa98c7df759dbd586a2957fcf42a591ba2cf7993804808776e8a3e72fec2728ff. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/TCAEH1927738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42014e686be3c3c50d8762570729db800e2785c61b09202ab6490b054780a27c. Chain 2 (Bitcoin): anchored in block 960303 (2026-07-30T20:11:13Z), 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/TCAEH1927739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c3c99b718e55ab61993830e84f7564187a79e02d5cf7f7fc656ef7051c713b2. 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/SEYOK1411127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ff3b43e49a8af90b733316b4dcb2a4ea2e7c48a813e551766700bfe65abde17. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/SEYOK1411129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54964d90b287a6789df76a863d9b2fef02d53c0268b217f237079b11e772bfe9. 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/SEYOK1411131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a29cb4dce002c13b206054bfcddd810ce0afa520dd1fa560d2aa748c92e854e. 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/SEYOK1411132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e40d759d50837a1bf6f3c0a1e8d2a40aaf08d79526d223ebbae19e12d1841e2. 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/SEYOK1411135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x672cf27602a3afa60d3ac811c524454a1ed8ed1be6460cd6a651f850039669f5. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/SEYOK1411128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cd667e28e2e2194d096955814e8e89a242633f5e08c65c46389b8bd97b6e564. 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/SEYOK1411130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x306237e68a3477d5eacbdd4a3996e8d3a837678a99920b239eac77eeffccce7b. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/SEYOK1411133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85757f5e2a2909d8f689f1699d02ac932895176497851bb40e493226defb82d8. 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/SEYOK1411134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1805e0b1feb9ce45ac05edd8ffb56b89653fbc8ac7e3b37666c9cdfe85c69f45. 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/TCACP1639434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b5ce8771a740a1454712dbccdea8511de0371264f94d1438603da2465c02a3. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/TCACP1639386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa88d128003599fbfd5d22b42b79821ae8a548ff9c25e8ff7f305332347f0ff2b. 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/TCACP1639409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06c7de5db61cd094962f8050dad80f121e13ebe16eabcc21dcb9983096c22f8e. 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/TCACP1639414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49fe2ef50423650069efa0f5b944bda90fe449306c35947d7bbe4c5683e7df04. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/TCACP1639422.