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 0x73e4db357d27d5521e3dd7e8786209692abe643bdbb3944388a026565f5180e0. Chain 2 (Bitcoin): anchored in block 953687 (2026-06-14T20:19:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/692cbe0f-47cb-4581-bc3a-18d066995a9f.json and https://artists.proofprofile.net/proofs/artist/692cbe0f-47cb-4581-bc3a-18d066995a9f.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 0x14df6dfe82ec1f2e8d8fb6dd4406685e1658ce3b52b501119700f74efc1b4ba6. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QZMEP2065712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6206d0711a108a37195c1269c0c833ce64892ed0cda0686f58d4ccf2fd25d0de. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZMEP2065721.
Antropoid Automaton Remix Feat. Bad Spit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa488b0698513c732c6031480d9e8c560fb289d92858bcfff8589901627eedf89. 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/SEYOK1539266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf766b3adab69673838ac6f912641c3468de8eefbc8b02df2d26dff425139e89a. 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/FR9DZ1900111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6351038e3f0e71aaf721b2f381233ecfa4f533da07b40675f38d90a97b9059a7. 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/QZPLR2306656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x357892210f55ab65fdee74f25b3f5dab627774605eba4d385bb8722e0cce1745. 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/QZPLR2306659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa24463fdedbc79c1cf989b9f3f060396eb95b59b3c7668b3c4b3a3c077e6f4d6. 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/QZMEM2312249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3037ce4e24fdceea1f44b1f9a6b3154c2d887d4b036d2fe927827e522cfd617. 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/QZPLR2306663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80421a2a9e22e7e763a390cb99d1a3afb73303148492e1725d41700fe8ce34d9. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZMEM2351286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f591b68804b5399f453c9aa83e1f8f9e245d2023367abe68c16c71280da75eb. 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/QZPLR2306665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20d371f0e2fa893cbf7dcf361a5665f37a5b6403d792915de346e019c96ef515. 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/QZMEM2351284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc17707c82af6d201c6546333b91694de73c272a60199b2a3a4cd2bf3d8968755. 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/QZPLR2306670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d7ea174614f839b87ef5c312475151241a25a236a6129fb7a7f60605ea60beb. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QZPLR2306658.
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 0x70befa50d5beb0c8a6d83b47ec376f4f8b1b124d82f7c1a3f7beeac30c630363. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QZMEM2312247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x414447f21a7fe8966f75e80d80e16b0af6a6ca6ac76ee4332ced1b1364d6334e. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QZPLR2306660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc169263caea3c416b70466ca8ba709c884f456d526ebf14b653c7b15bd703879. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QZPLR2306666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e6b626accabb8d98780782c892327b79c8a7a3ebb25980fcb515ee3f95017b0. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/QZPLR2306669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x517318e00258ac94239da9b18aeb53cfeeb0802500199339abb9a50b28c9ec80. 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/QZWFH2484362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee4607b7c7f25961e4df87d8fc6b9625a3356b1e82868a09777b1da3c7b4da9c. 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/QZWFH2484366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d3b98ae17dd708c74dfeaacb18fe6e7eb6737c28c59357121cf2fe9e2b3e3bd. 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/QZMEN2458212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61d9df7f9f7848625d68a30fa00e5bb8acc5fca730dbc3de296ef0c29ec4f818. 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/QZWFH2484368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc023cf06130c73bc80db7d3c85f01501a5b3efc5c429e2d1307cf97353dc75c. 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/QZHNC2471966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f3d58513cbff6f4949ab62490668052a29809f79e459731da703fd0ac060116. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QZWFH2484360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7b12d28678d0fe72a3af5370a228ee9e5d4299433633a7fcc6ef0d3f3c2b315. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/QZWFH2484361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8226f8e8c909cfdaae0807c91e2f7961fdb7c098f531d8f647239ef98493c8b3. 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/QZWFH2484363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fbd42f4cfb164e9d7fe357fb21e8cad48debc6142af3520dfb9471837136562. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/QZWFH2484364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf075fb0772301d21514f9c44319e5c38f477d90380fe8378d11547ed78feb00f. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QZWFH2484365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc516c07b42b1fa3173cbda52ab57a74863718981e80125e1a37de2c49e23f7c. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZK6N2434251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06a47496ba1bf29e1cb07d88285b971cae4cacb23a62ca02c93775d7e4a5cc98. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/QZWFH2484367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x460331dc66326a58137cb31e17cacae9412b67a266281875fa00ba9fed0a40aa. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/QZHN32594277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9236a703f8e0a83f636a49b7ed3163a31d344aaac12d76d22abad0b3a75882bb. 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/QZHN32598846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x137953fb5b79fb27974b9a57a8c71cfe8336bb2b6249e86aa969e3894065230c. 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/QZK6L2579665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71bb0c6ec9a6ebdfeb48df8d4324ae97c221b5997579869718c7080fa8941308. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZTAX2553293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1ea3d43f20d06928c9bca7d3caea5f67af884868ac8ef13910a34474c1281b4. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/QZTAX2553294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x619b392d2efcb53597c9b7a013fd7ec97138f2456fdccfce8dfed0a637f14a9b. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZTBB2593995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2404b118a1bc059b283386d35ccd6353c9c53689368217945530c1d19d207f92. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/QT3F82599491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfed3fce8b19eddc62da15f9913b4dc9ed0188472c0bea821d1b5c0c88a392bfa. 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/QZTB42272931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae354cc512ebdfe9a921e87a5b6c9d66959288c2dcd09a6183203f3eb34ef8b6. 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/QZDA62367033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24b2aee74e406434f8b5cbdfd2c59d05ba443e78913d4c034d94704a1652ab7c. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/QZK6N2483982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd973ce7bcfc0fd27931b242ac664f740bdada5b5182a238b919cf1c0dc8934e. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/QZK6N2483978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef00ffe8fc0a8863feb7f4026d33a2e49a025c89107b82ffcb5c490334732dde. Chain 2 (Bitcoin): anchored in block 960355 (2026-07-31T05:49:18Z), 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/QZTAX2463487.