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 0x9d2d7084443335a35b1d562fa5384efdd4839f97a142bc06f6509f4b2eef100d. Chain 2 (Bitcoin): anchored in block 953645 (2026-06-14T14:31:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/40c176c1-8162-46d0-a740-de0d8fd372a7.json and https://artists.proofprofile.net/proofs/artist/40c176c1-8162-46d0-a740-de0d8fd372a7.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 0xa89c3f42d98f52288b8901116b7b2893ef557eda1b0f92b9e6e6a9c538d863bb. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USUYG1174701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f3c4310e8b8dcee95cf8e511db85f9c1fccc4482f43f5d74bcf6bf9a8a56f9b. 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/USUYG1174684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8001215b2667fbb767f4e375b35e0a9b119581565dbce70c6a38d9c8cdb5d616. 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/USUYG1175477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41eb56b850c3185c180867d08204071a3752f6a14beb4aa3e919ee800527013a. 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/USUYG1174697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbea2c78aee16b7db85ef69bd7b747c5a45d9e048a6a03b9622e8c952d1d71f5e. 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/USUYG1174687.
C.R.E.A.M. (feat. Fed-X, Rydah J. Klyde & Husalah)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfda95dd1078d68650b6e98533660f6c5ab9795879f5a7ad1e745c4fd4e3c2c41. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T10:22:38Z), 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/USUYG1174692.
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 0xb8c90714c0bbdf85cc516ebee74bcd2d122e69fd835b02871c303ed8bd9a0418. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/USUYG1174682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14479321992e384b055c49ca077209b2ca420246923d218e13b5b9022f01091c. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/USUYG1174685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e26f22931d166f3f3ee19dd9627b20ac42d34242f10c8981cb7c974a131be5d. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/USUYG1174695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6377a500908dbbb904e1731acddd2260bc55e7a2eac2edc8ffbf0d662f6f244b. 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/USUYG1174702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82bc1a1ecd567d82f274c9c6cd4d15982997d733087fd7ddec9f25074c6da319. 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/USUYG1174691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45e0bb1ac877e5d51380ba81a4892d69951d8c87fe2ea20a992848ed784e21da. 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/USUYG1274005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78b89df5039470bc96f5d6bf2dcbea578ed39b3f61429007a9082aa940c07a6b. 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/USUYG1274012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeed0ffa969c7868aeea05be55b647bcd8d57a5e73a88621b45565fe788bedcc. 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/USUYG1274016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b779e56497c123548f3bc9ebf6dd362051ab96e523bbc64a4c7df03b63b23c4. 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/USUYG1274018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8be8034d195bc9a662f9ac57fa75a815dec72ea82c80eabf4de7409dcda26147. 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/USUYG1274236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x504cf23927d41f4e12a0e1e84030ed0fd893613b3b6528aed675ebab08450ee6. 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/USUYG1274006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6fa2194ec2af880a2fd607e260500ff5f8808e8f79a00fdfe994fa470ed9018. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/USUYG1274007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf14da159884ceb2c0899ba96a7532d4e40f4b2b39c2f523139ba4c692cad6347. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/USUYG1274008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd012334bf045d9daa0987185cc72b9843d90553076961d26d3961b532f3ea6dc. Chain 2 (Bitcoin): anchored in block 960191 (2026-07-30T01:51:26Z), 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/USUYG1274009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32d14ac72911bf05c9a13b88f80fc01520c4482a17ef8172ea20cbcbc9653cb4. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USUYG1274010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed68ed16d19c3e5ebd18257994f1451f45454a6372e4b994b90a059e799bd3cb. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/USUYG1274011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa88334bdb17d5c09b2e7bc3950ce9aadd08cc4d83160fe4be56db059290dc636. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/USUYG1274013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa68fa3f40e056a60a14689d957acc025d6a6aca928ab21830233cfe9d51a31c1. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/USUYG1274014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd28a0348e28a0fb980e762658305501f7a12f167547dcb2c953d1665c867a00b. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/USUYG1274015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8df9748ceb6601c928907cc1c7073996e4d0a780b897d016d94957afe805e2c5. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/USUYG1274237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc78e13bdf29fd982b0e3ae42c677b56653da60f5cbc837b90ae8509f417a80. Chain 2 (Bitcoin): anchored in block 960285 (2026-07-30T17:26:40Z), 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/USUYG1274238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x898b273a3867692a7fe8789cba7f8998dfb8562c7e2061cc8534b939930c4be0. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/USUYG1274239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17727c8ca22a80848c3a5d7d0b9913af6c9a71bdeec6c42f34a3f9feb85659fb. 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/USUYG1274242.
Political Pardon: Street Legend (Season 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10f614371ace1b66467e100974cce7fdd3469dec49fd14ead2ca4ec3d6fa8a2b. 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/USUYG1415717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9126888b4ac1834b9cfa5da20e250a89648e15518dc8606da18be1152feef5f. 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/USUYG1082604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e83fcfdf3c857e5ff74c9dec166418f2c10a3a8019ff08ef8ddd1595db05dbb. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USUYG1277226.
Yo Love (feat. Mozzy & Street Knowledge)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94e14751b05b119f41543286673516d5d5fa54f35b18824ef104d58ecbee414b. 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/USBAE1314961.
The Jacka Presents: You Should Be Payin Me
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x014762d7c5f88d06cd987db568ede59a6f47a47448f4b5f2f0ba89a0ac92fa65. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USUYG1005432.