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 0x8225bfddf5e772de47a41404851a101a753747301e13e74117be415a9a3a4474. 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/127a9806-3def-457b-b486-0c53eba69232.json and https://artists.proofprofile.net/proofs/artist/127a9806-3def-457b-b486-0c53eba69232.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Hanging Out With The Cool Kids (Remixes)
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 0x5ce21b9d6f2e3d6fcb2fbf38c0af61a748f8819cd10ce35923d2bcf1d56ce5af. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/CH2182000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6681a532f4bc30fa8ca84d44068b997660ebea9df76547573636544d13e331c. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/CHD772000045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d01e36d212b801ea0131776e2310a87ad61b3135a1c487511a619b21803507d. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/CH2182100047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdef3b4f21fae22976f2eb2b998cb5ac3c96da32acb8ef9213b46b393e161d799. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:10:09Z), 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/SE2FP2204201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09e3e1bc90b20bdee41a615717282cbc9dcf323beebe28199e51f00e84356345. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/DEPY32200312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d4ea25b86ef3a91cf90591b580ca54b2779b74fe594dbafe1a40c3a330d5b66. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/SE2FP2305601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72952a606757289d14bc2862d1dea42ff33f3cfac9db4b113e74270b2e37b372. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:02:56Z), 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/QZWFJ2335689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd21c695d49298562e02308832012664a50b0f11ec173a5f8ab8af57083adbb8. Chain 2 (Bitcoin): anchored in block 956748 (2026-07-05T05:55:59Z), 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/QZFZ32420423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8e8abae69cc100ba75d7c83e4a81ae8d6dd7b00a7ba22581d8e4a902f8a27af. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZK6H2466747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8e8abae69cc100ba75d7c83e4a81ae8d6dd7b00a7ba22581d8e4a902f8a27af. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZK6H2466747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x114ee9ce6d63e937cab604b0b27cc30966fc669d2596721fbc3a424645d5e590. 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/QZHN72465970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72952a606757289d14bc2862d1dea42ff33f3cfac9db4b113e74270b2e37b372. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QZWFJ2335689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d4ea25b86ef3a91cf90591b580ca54b2779b74fe594dbafe1a40c3a330d5b66. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/SE2FP2305601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f3ccc11a9edb72e6b92b785d3a1d9f41e2bf09cae69ab88f8cd6e4697d17ec9. 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/SE2FP2305701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8e8abae69cc100ba75d7c83e4a81ae8d6dd7b00a7ba22581d8e4a902f8a27af. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZK6H2466747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x114ee9ce6d63e937cab604b0b27cc30966fc669d2596721fbc3a424645d5e590. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/QZHN72465970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd21c695d49298562e02308832012664a50b0f11ec173a5f8ab8af57083adbb8. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZFZ32420423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72952a606757289d14bc2862d1dea42ff33f3cfac9db4b113e74270b2e37b372. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZWFJ2335689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f3ccc11a9edb72e6b92b785d3a1d9f41e2bf09cae69ab88f8cd6e4697d17ec9. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:32:20Z), 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/SE2FP2305701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41a564373651e350e8f43b736876a5b46dbdcd0c3dc382dc297b027e80cac185. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/QZWV32533073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b7ee73102dbe47d1e2eb874baade156582c20350cff6f7deb1ed981f070ee8d. 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/CHUM72100069.