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 0x2f6bb8d7d4b02cb7c17f07d8ffc5fa3202fe544ccdbe191a8799ff74ce2e240c. 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/a3e6c405-1089-4bf9-bfe3-cf63797ec181.json and https://artists.proofprofile.net/proofs/artist/a3e6c405-1089-4bf9-bfe3-cf63797ec181.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sexy Single In Your Area (Ironmouse BGM)
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 0x43f4d9d9f15a2fca84780eb8c5e64d6ba243d7519fc9441fc607f2ce445437ce. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:06:46Z), 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/QZK6H2156404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40a5176172fcb4b2c41a6afba4f89c30188441275e9818d899c857fa6aaf900e. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/QZNWS2155474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f272944eb02013eb7efbf8e9f87fac0913b6b6e4b1bc568704856f2cfd5847f. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:51:40Z), 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/QZNWS2155475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa792754584c8998be10e8eba1c77ab57f928f365f6eaf7f6131dd4e51dd62428. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-17T00:58:16Z), 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/QZNWS2155477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2c96c46805ac427936f8543c1244383e39505704e5e0ad98bc25c4590775bba. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/QZNWS2155478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaf7f01f3a2cadb94db79a6c4cfd506cd732ac32b10339e790d599ec25147934. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:23:02Z), 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/QZNWS2155479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e6b6893e40b8fb1bca78e7d2a9d448bcdee29bb63a8feeb73e74aef5b467dbf. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZNWS2155480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x975312d91a634b0d16cffcfb7814219be7aa070aec75b3e10f22319d4a254269. 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/QZNWS2155481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3976239fe6d1fc8ed56dd63f9b8d7c669c991c3955143bc6f6b99e2df76b4cc1. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZNWS2155482.
The Revenyant Cometh (Nyanners Intro BGM)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf231f36c147695c013cd54630474e815d89975b6d1a8569f54de10b243589e5. 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/QZPLS2179909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x157ff196bc80e69f6a4410e83afeb6c0e47a7b563eac52fcb3b0b95622af6aeb. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZDA62238098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae3e5de7cf9424b8dfda7d994b79e1d891064f793b377c0d6653afa7574d7def. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QZES82255058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2afa2b3eb8247b5dc2d8e1fa3157f33f7a7f03764c1bc636803e0251aaa03c42. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:45:48Z), 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/QZHNB2277944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ba2af1eb5c44a18613a75568439bd6db1251652cacb69fa41321efe061e01cd. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZES52330087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46eb46a7e9002d41b03dba7918dce8b83145adba47b3ce0012246ffceebaf111. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZTB22312760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x423a77c4992863cc1225c8046d0198b7a8d8e8952bb22e58a50ac2166773c3e2. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T21:26:24Z), 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/QZWFV2424314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b1dc6c5eb4580bf28e44d1861bb610706502d503c6e207a1f480cd2ef21acfc. Chain 2 (Bitcoin): anchored in block 958590 (2026-07-18T17:28:56Z), 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/QT3F42444140.