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 0xbda25f195286bc9f99ca3e3f7410ed96618a44b1c2ffded5b015d41b714ef620. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9eb59b9e-d667-47f8-9588-59543e31f9f3.json and https://artists.proofprofile.net/proofs/artist/9eb59b9e-d667-47f8-9588-59543e31f9f3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Integration (Romancing the Ether, Part Six)
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 0x783a7a95a156359435be11a3780f7afea6cb93641ccac96286a84394e9299ca8. 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/QZPLS2389312.
Intention (Romancing the Ether, Part One)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07c228df061d44ea2f6aacc5ce6d552a9ba7cf8541882efa4cc7906563bdf338. 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/QZPLS2389307.
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
Strike Four (Romancing the Ether, Part Two)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd676b38019708ee09d881f537557b3902788ad69c532bb974176c9bb54ffba26. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/QZPLS2389308.
Embraced by Clouds (Romancing the Ether, Part Three)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9bdb743bad4482b6d7fdded2aff3b89697408853b1be1a61a966730d706a249. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/QZPLS2389309.
Dissolution (Romancing the Ether, Part Four)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8bd949dd28d726746b0213079fb15c5825ed0b2180656d94cbd20bfce9307f8. Chain 2 (Bitcoin): anchored in block 960407 (2026-07-31T13:26:30Z), 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/QZPLS2389310.
Revelations (Romancing the Ether, Part Five)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1401523aa57696b6294f6a136a35926e4bf2dc90b320636af762489cae8c6f9c. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QZPLS2389311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bb24cb4f0a760b38c8dc485dcedc606d6d80db017e994f1b2ac7cb80f71c878. 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/USHM21933106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60eef2cfa11d109776b94cdc9c9a9e4f01ecc9839f29d04a0dbcadd018cc48c5. 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/USHM21933108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0097ddb0ce54cd29b63f7727bd4d3f75b6fadad7c081ba031ec01c6c8e5ac54. 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/USHM21933109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9d62b52b64f27e1a933305a89c6657f4f57ddfde823f4936f4a7ccd8b347683. 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/USHM21933113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32ceb0ab85b97e80ae27c31d86f607ac5b4e6b6cc7ed114d1108e9fe3cace1fe. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/USHM21933107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d1661603d126a96efff18d4b08e6b9164ebf74083d97838164de2b59e922ee7. 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/USHM81623541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x315be9d04e30d2e29e0b7c84eb55fa3a5083ef4461136b71e5127bfa3cfdeb32. 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/USHM81623542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x136abc3c98116cbde2f4e0c6ae930755378301f5e65f14e6cf89ed6b1ae398f1. 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/USHM81623543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44f4a5f96647935168e2f4b3a12852678865aa54721a18070aaed6ce3aaaf89b. 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/USHM81623544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed2b7db2b9a8203766f6e73c29262d328aefa223d6c898c2988fe6290a7a8b16. 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/USHM81623547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x368a2c70d92d50ae5b9e65c2a026d94394c0bcfb6c9e87407f96ccbea34977f5. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/USHM81623539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x284fd53df301dd78e8c7ea8d0d5e56f83eb421fc4aeb042c6510a4e92674f5be. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/USHM81623536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43bbccb96f8cab07aaeda512e0f598f3d8680566cb01d52a75366b4268163f71. 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/USHM81623537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc35209315748c550494619037b15308c84a605e2b247da8d3d5260ebff68632. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/USHM81623538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf724ce1031727208de61902f7a1a6b1b49ce186383a057f05f3e6bcaf8652de2. 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/USHM81623540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23eed225c0e402ede8fda66d6bc1720954fe20fb8e0b9192eb82e84fe086dfcd. 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/USHM81623545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe6456ae7573bd93e72095faad2c4c4155fb3ee4e9d0d8cff08ebc71ba456563. 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/USHM81623546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9be10fd66cc8440fb2af734764ad348bc17fbf54e2bbc614b6eed8e4be968db3. 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/USL4Q1983363.