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 0xd2af62551d929590e181ae7d58607d677ada2ff64cdd1d04c5b1922570b61aa4. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/265ec2f3-9904-4d83-bca6-e946240b80b5.json and https://artists.proofprofile.net/proofs/artist/265ec2f3-9904-4d83-bca6-e946240b80b5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ground (Slow And Crunchy Mike Rauss Version)
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 0x19034389ebb9bc064d95eec9f472bcda700e86ac863f7d957ccc0d7664e9ab54. 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/QZK6Q1996014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5952cc847633d6413e1b2007de1a3245faded804cd01f0dad3275911efaef9f1. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/QZDA52081271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2147de3ae56524708171b016a82ccefb74ef92fcc31d703c212fe279feefa9c. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/QZFYZ2192960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63f0e8ad34bf5b2ce1587392bb256322a49e4bc0e55f24c2dd37fb4a9004b969. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/QZFYZ2192962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f50945c571d0698303966ce5368b63554f8edfbe583e863e64ad10467046ab1. 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/QM8DG2097030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd567e317480b395c1552a3dcde7d89f35300fe38986e6acdda2c30cfc263c11. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/QZDA52264465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06e3558e16de61600f3ebeeeb2f06c2fd2e57f69cde9100eda3fdda4eccdb092. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:35:52Z), 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/QZHN92289287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d071e22440ae86fa406729926cc7b4168515a71f636e613864c62c9b7c35192. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZHN92289288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe0d0468fed01a730e27eb7c76e6c322cae7c9cde1f43712d96b776f36ad14bc. 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/QZHN92289289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f63d91b3a4c635bf713ea2cf6d97dec363f036b322edaac0056bc4f777cdfe4. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:57:38Z), 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/QZHN92289290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35c3c3e8f975d835ab3c2049c90aedd5c18d66d9e414502d9f4affa522794e63. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T09:45:24Z), 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/QZK6M2290730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14f55706cf00b91b22777231c057dc19b0a5086d48aafad7917b88a8194968c5. 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/DEZC62348985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x450abf2583c21144f0e9644e8dc5153fe31c87a379287d8c966d0d083eb4186e. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/DEZC62435336.
Flowers / When We Get To Know Each Other - Voice Memo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74bf6acd9b37cf05310afd5d34094f63f9a2f02283e31104af6f2f0627bc4b98. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:44:31Z), 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/DEZC62439157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x116f935faedac740703b2bf194b80378b0c793af740865109279b629eeeb7d2c. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/DEZC62449711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4e89225e5103187fcadcae31d645e8c655bb1a6bf4bb142520117b017e24390. 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/DEZC62460210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x744070c13c8c930860c60429546a65575d5a44ac789ed7880b8048d3595aa781. 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/DEZC62460211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3607428875a2766eb18e9570c324f0fb777791ffded7c58051dc1859655b1ad. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/DEZC62441092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20285c2789f3ba35ed2aef8199cffe63dcf1ca1f3f40b26c67d66d3d1ab8a990. 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/DEZC62460213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4e518da81451abcb6ef2978cd34367cc3d2328235676d4b5f2ec8cfa050e2fb. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T23:01:13Z), 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/DEZC62460214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd63d7086fa03ab96c180ab5bb43bc80a46deb0ac224ee79195a8023cec7c14ed. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QMFME2324626.