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 0xb86ef64afd1b5c94e2cefcab4f8c3665d4c18084e95ca1fe2ce93bcb2b2c2a5a. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e403fcda-0b9a-4b1f-893a-60c3ab5e4dde.json and https://artists.proofprofile.net/proofs/artist/e403fcda-0b9a-4b1f-893a-60c3ab5e4dde.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Geese at the Park Are Free If You're Fast Enough
The Geese at the Park Are Free if You're Fast Enough
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 0x8f12b292ec5b8ce071ed18a71529a410eba5cceca254e2fd20bb7a613e5773ce. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/CAGOO2176132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c7fec92a1f38f3e084011c41dc8a5d6b4c6d6c4594add3b14fbaf915563869a. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/CAGOO2176126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ebdf45d2ba410b8a86bb214b4e512139377fc162626a180b310349b74184d02. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/CAGOO2149120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dbebe6aaa9b4567a4a79a59ba0759504047cdf1c4b6b52063bed5017bf91949. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/CAGOO2164495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb0a41453a9499fa60ba0caa5313e354e33b888f747c2e65b7ba7233d7a467df. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/CAGOO2176127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2927bd2f6d8b9a77ec823b612dd80699d55122d9b2c3a7f699ba5c07fde9c5af. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/CAGOO2168243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6fead3499a3066d70440adab0f7cd2c1c5b26ef37cc486e3daed688e7b4637f. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/CAGOO2176133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29faa10fc57dcce201b564b400c29cf68282a058878107d627f01c5807565aae. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/CAGOO2176128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf667b6c74de022d8e8792026c2fa0af6e6e4d1deee2d44f4b56d978932722be. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/QZZ782437209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x289aa7472324794aab9c04d6c2e4838ab504887c8940555a420243918dcb488b. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QZFZ22519504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf667b6c74de022d8e8792026c2fa0af6e6e4d1deee2d44f4b56d978932722be. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QZZ782437209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e06ee603cee76dad837b2c4804906d092680d62d11f979b3d6b608bf9746c90. 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/QZFZ22552145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x732172b0ae05b605cd18f0e8531add1eb38f0723b12e95a566614e2591e594a0. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZFZ22527680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0097372c4745ec8dd4596970e78abc4b6a33c9b842dcb5358f1f0cdad915ba94. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZFZ32516368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x289aa7472324794aab9c04d6c2e4838ab504887c8940555a420243918dcb488b. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/QZFZ22519504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f706e5e3e6516e1a709e78c0d443526faf2a5949378c788a5bb8ec27970154f. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QZFZ32516369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x732172b0ae05b605cd18f0e8531add1eb38f0723b12e95a566614e2591e594a0. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QZFZ22527680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ec09ebedbdfaa0a4c9b8c59d256aa49ebbb41618763418aaa478fdc32ad857f. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZFZ32516370.
Bosnia Can Have a Little Coastline as a Treat
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd686b403ff3cda882eb3ed496b8692ae81b1983c3442a5a6988cbb366aaa191. 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/QZFZ32516371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e06ee603cee76dad837b2c4804906d092680d62d11f979b3d6b608bf9746c90. 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/QZFZ22552145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb7e40acb3b2abf61bffb618244730f67f62ff54059e1e18eab2908ef8e1d94e. 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/QZFZ32516372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11dd68c6e3e8521fab5fdd39fbd59ae72af90c8a2d88bfda356e769a8c3996ce. 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/QZFZ32516373.