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 0xdeab7ce8fd584729adafa1a7d24da06da981b5bca7b354ace844694b269cfc39. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6fe431fb-9839-489f-ad35-ba7f032b1321.json and https://artists.proofprofile.net/proofs/artist/6fe431fb-9839-489f-ad35-ba7f032b1321.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0xac2992129edd4f77ff31d7108d04e0d80b21a7ef8eab85093aae1586476121af. 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/NLCK41087407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7570dd09568c0daa0f0c05a0e272a77512bb148f273c9c9b9df3cb0e48f41d3b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/NLCK41087424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae7a484e414403e6251a9ce1ac29d044ff1cbbdc774500e764b0d195d46ddd86. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/NLG422400356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfabb2853a6f313262ce88d99bba1ab3911a9ee5243ccdadf6710010b612756a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/NLG422400348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8e8fc66bd932a30bf5187fe8fee63240ef4f09404c86c427706002bcd761017. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLG422400351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e7169db7689ef2b23e57202c3db2a0f6faaebc39055307d2a6c7555a07159f7. 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/FRX202273774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa811141f372fd96f03043de029ef5bacb87bbb54098c8d41ddc4c6104e098bd7. 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/FRX202273779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d970d6d3bfc27d7a55ddc665ba8237391b4b84d7742fe0621a91bf9089316db. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/FRX202273780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b48a42dfe26c32e2e237ed2bb32fe37741ebad391100296a5e42434f09024a9. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/FRX202273782.
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 0x13e49b8b3cf5aec9f47a252edbb38dc3967ee01a0dc1618ccf7b651b157aadc1. 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/GBKQU2099165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x495febe0e318e0ff047fd2115f71ac252adc7655261141203b9f2774b7b35c27. 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/GBKQU2099170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d874929797fad2ba27d2585c1b7bf1435a72bf0638f659a68a63f392ddf49dc. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLCK42412829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf70c56de8059d85eafe0a068d66900aaaeee1f0a684b2688f8a5b4db76b259ed. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DECY52200743.
4 Years of The Black Hole: Interdimensional Troopers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8b98dde44fa6887189e7840de0f7e8648acf73e1423722f989ea39ccd8a72fc. 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/NLCK41081723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74dfd738f12be0b2b148e44df0fecdc6f8e9b36543c216a11a99a6a811093a45. 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/NLCK42212741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e924b4b39210cd263bdf261d3f7b09530d699dabea9c882cbce95d31005674f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/NLCK42212742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7fc70dd56de680889ab2d22413ff73ee0f2bfde42a9425bec39876c906e896f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/NLCK42212749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00c05cfd94e0689a84aa6ca32351f3d49e71d0223345ec1e9376ca579b346e9a. 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/NLCK42212752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a46d8e992e6e69ad8c9920bb81f6df7b11d66bea09a53697e9501c6f13f92fb. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NLCK42212753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aa8170f32268e12cb91cf1168e4ef27936644ac64da12b0ca40d98c7893cf89. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/NLCK42212744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa879d0b47f0186db12f994bf5a81900573576164bf5ae6e2a8d4661770827adf. 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/GBUNP2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x042d2dc3ca11b50797d4811832ccaf5471868628e83d862e4b540e9cbd68d303. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GBUNP2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e8832481f170ab88e6ac831123213436d5d584c96e34f3722f4608fa809614b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBUNP2300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7de3f585ce8c8796d0e844da1958a75da13869b79b0f36a0e2eeabce187d45b0. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/GBUNP2300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01faa8cc19c331445aaa47ee00a5639840acbbaec422be377cdc2173131b32a9. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/NLCK41064615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32b495a433a385a965058574890afe32f9374087d32108d1126a1f00a3c87eca. 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/NLCK41064616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9052a5abd3c54e014934b01560d00a32382363ae761d0a88f7d27379826aa226. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBLV62131430.
Infinite Space - Exclusive Digital Bonus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d2f792041d70b184fa4ad1586496b414615bcd7642e9dad3b432168eadb6bac. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBLV62131436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac9fcb187c43a42a1e8d15ee08a5609c9c0d69d56e1db3a03bad7f91ebb4c138. 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/GBUNP2100401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0ca8286c86254b71cd88f34e9166ee3d05a8f0e7e4ab4aadc2ddc69467b30dc. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/GBUNP2100403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1845333ecf797288081422b57112667daee3df955cb808edbc0750408cdd3b01. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBBVL2106091.