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 0x7fed3f84bc01973b404f5ad5517d60422173016ed2852a1b6c6c5446ae122aa2. Chain 2 (Bitcoin): anchored in block 953772 (2026-06-15T10:33:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c86e85b7-4190-46ba-b4d9-ab7f5d296757.json and https://artists.proofprofile.net/proofs/artist/c86e85b7-4190-46ba-b4d9-ab7f5d296757.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
10th Anniversary Bad Apple!! feat.nomico PHASE3
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 0x7e0816511e5b7d8f09b03f73e91476652d4d39ece403c7782450b6261e5d160f. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/JPW561805009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7cd98f2de221076918738417bf720f836b8b23f72090fbc60011b2a4d49a337. 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/JPW561805102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7afb95705968c42601cb30985e58c037b41c799bafd654589231ad8d1167143a. 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/JPW561805045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1af14807fc6e883cb18ff7f578a04f70841cdc5cdbbb0d8f0f2638481fc7dc12. 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/JPW561805036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x111a10e7217bb16a83b0dbe37e39f593e3610cf97a8669531c3c677ad8759d2c. 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/JPW562104530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x312daf6f62f4591232a027a0cef54c8fe7f8755394cbe8c0676df7d59a00106f. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:52:38Z), 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/JPW561805035.
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 0xec47d30286079bb199f9d5494fc130b1718680379abe4ccc083c8fc9ca5e899b. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/JPW562004572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d0917202f661281a8109a2b4dfac79bc80247fa012c52b9d70b58a10a23439e. 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/JPW562004575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x162c3839ac30de90cf49d393d414fda3d60afcaa0fbb621070aad2629d1ca7f7. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/JPW562004539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e2450119ad0a3ad56bbf3a62f37063433bc452c0953024d6fc6d86a8f55b878. 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/JPW562004504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffcdbd5a6942fc940a94675603616abfcd4e26ce3b73d604ce1e5fdffad6c803. 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/JPW561805051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb3228c04a2d825d4d3787e2b3b2fe702970255b46a67508389a4fc7413c1555. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/JPW562004465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c78558ec5de3ba23a8181fe9002446315e42e19a4b9ec0ea966655c284ba80b. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/JPW562004493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e67a18777a8fca85e940879dede7591369282f3ff3c47fbf26d6134228a66c3. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/JPW561805061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1614ec2beb64ff78b1252cf27310d909b782f08af786132fdde8293cbbc00e4. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/JPW562004525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1d532fcfc1190c5ac5be391c3c37bc8347d8f82a6931f3a944852a21288943b. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/JPW562004529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1c0377ef9c3d6706fb08d229a46299beb6550a10b860d0f1c62d8b6ef8f9109. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/JPW562107420.