thumb|upright=1.35|Grand opening of the first Dada exhibition: International Dada Fair, Berlin, 5 June 1920. The central figure hanging from the ceiling is an effigy of a German officer with a pig's h
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 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 0x9fc0c867bec9665bc862b54f39d25e5c976fdee054f3e44ff3433e9343d30ba9. 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/d236fae7-6cb5-4d9c-a32c-361bf7fd8941.json and https://artists.proofprofile.net/proofs/artist/d236fae7-6cb5-4d9c-a32c-361bf7fd8941.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 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 0xf64557170526afe232a54ff71820a6f120d74b756844e58205988e20bae46f0d. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/USA560583122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ed1bc95a89d27820b6b5222e88f1a4e4b675a1161d35a6fa360e55b9da1cbe8. 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/USA560583123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f91e1383f39f5ed78e54288638d0ee47f4b18751e55ae12cf259f54488f3a2d. 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/USA560583124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x073315d94566bc29c101aa03151355421e2b71ed157f55b06803c610c918f5ad. 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/USA560583125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7135d420018332c894cf7f67af9dc4020cbc442d5d552e9d5b7b34a4d609c1c. 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/USA560583126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe69e56c7d0867ad696b2deba3292d04d6faf76e2156a31fdb70ee1bdb63dbff3. 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/USA560583127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fc2f3bf8d055bce857a53e25b34b9694142f339e188ad5a822956e4137b52a2. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/USA560583128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aa43a1f8e19d9d19a6d005562e7f4462db5bb0c406ffa19a2edc8f2cfce2c7d. 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/USA560583129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb15daee8d8eeae303ceb3525af1909532af0b49822b9370969929cd3a754b468. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/USA560583130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x904993b1e128cb08788fa03b00bbd7860fc76e4a9d28f046cc18e593429bd2f0. 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/USA560583131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x747f823320fe4eb71560235f758efe831e1e93122d43f5d9cb89af70f4516c84. 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/USA560583132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d03c35bc0784ff6a1dfe5afeec83889113a0a356392a91bc6746c8773ccde46. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USMC19858051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf70e108134ae21505622aa098fd351a7c758d0cc4407ae0eee24011a4411331. 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/USMC19858052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd87c66620a0ed930b63894bc5bf38afd73f4005ca7cc9c5ac2d5370f6cd05b29. 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/USMC19858053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a24dbdda9c4315ac2c62ec947f72d187d40495d9aa33bb91264df7aa86d9204. 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/USMC19857882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4f3de39bbb3af60c6b862e801b74aa952e935b918a1f844d2edc130a5171be1. 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/USMC19858054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19d3a1bbc6040d53c1365190cea712f2b14596dffd0a1556f1f16e40e49a91de. 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/USMC19858055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c732a0d2f3bdd963c4f2c28201b95a96e482ed93779b49ab774ba24e175506c. 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/USMC19858056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0b75d4f53dc31c9fb46780370f006c2b148745423f5773ff354bcc31c6e58da. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/USMC19858057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c0cab6951db2a84244743e7cbc5b545ccc1979fb3753944517517a0aba195a9. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/USMC19858058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3ae96df33df3980558dece2a8b7ef9ed33f05e2a48514fb34c237099b27a67a. 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/USMC19858059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68911e96587468c2a28a479991c8975d5bee589afebd78710d8c0fddaab257ad. 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/USMC19858060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b0c4ac5cd94270cf53fac06c9d3404f9de6c29f1fc9110406b2d7a9c6378d92. 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/USMC19858061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5238a8883a6e6f552832f6f97dc724bf7b9604d03323a890a790cebb5ea810d2. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/USMC19858062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb12828a2ef69cc4ec5aae28d050ec9840785eedd3433a305b876c7138fc665ae. 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/USCA29401186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c18ac692434039b78ca57738f9419cdf921195aa6d609277f3f432d12848682. 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/USCA29401187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b4353bd4eb41e17b88937d0998c40f6e6a4e0911e2700bfd2c608bde1510477. 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/USCA29502248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b20acd5ad7f18a0c42d2515e3536208c5ea3cb7f086220dd6359d6ce5684822. 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/USCA29401188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc35b324a84834ad489af24fa25dc00e72fe70d7d377b132f927a02460b0f403. 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/USCA29401189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf88990ff21ad88fbd4450825f0f8fe7bde74f6476b3cd9b9b5cf88f84a7132f8. 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/USCA29401190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35510a0b0a1a3a92ebfe8c664f02707133d5be02bdc7a33dc9c72bc8dc327195. 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/USCA29401191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x410827430bcededb4e617e99553ae1e69e7b454f525f114f4ed6947af79b3094. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/USCA29401192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77d3ee4c54b237e019ea91d0bc7781c85e908bcbb5bb64a83452a67126401cbd. 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/USCA29401193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa833daa668265552ea04fd1cf77a3285ed8b2f398d21d6daa4b7d0dff3a5ab90. 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/USCA29401194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4fdcf39c69821379dd8da8524f4e51b97114de0e9681a7792e484e44e1028f1. 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/USCA29401195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x261ca531baf9e434c0fce0d88c755f056e1a21e2d5dde40f5ab227c37fece370. 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/USCA29401196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8584f8f6a930b7f4ad48f64bd90ed738fafd4e3ba606223e7caf9a5a582dc5ac. 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/USCA29401197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c7b68b9cf36b6c80afe61e8074cec47ea71079c843ae55b7cb6dfc4d6af3b7d. 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/USIR39200080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58b65d29c672631079596672d4ff009e32349c90234527d4cb8e58a351210ff6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USIR39200081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0af17bbea9a0dc4cef50cbb6903c95c5641e1fa3b6ce18d66851ed36fe3f5748. 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/USIR39200082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d56d5deac7d69c254b5373ca6ef5002da42f83d3cb278e0aa1f8d4d76e165c7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USIR39200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8688d5bbae2b549651493137e48ebac38799e71340c6a814ac7c6687ffd93fcb. 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/USIR39200083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36e0a6ecac6d02025b6dd23f577e3795bd9a015b7dfbf37cc1e8b04c22987f26. 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/USIR39200084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c289787f51c4aa9ecb55314ac10e45a632da0c8d57762cf799d88a570fe180f. 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/USIR39200085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7931cc32bf8aa97327e8cc071ddfb331243466968437e88547ed4640123eae68. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USIR39200086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce99484d15edd247f969b2dc80854e92b16e61250a3c4bc2153351982d099a93. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USIR39200087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88ce3dc6adb3ec7d701f68a4ec5b4a0badc4d74d6e1b811b93776a55d2943e9e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USIR39200088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5ad2741372f4d1359973b33faa73ca9e318e8dff9802998211aeb230ac1f785. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USIR39200089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc950b7a8039654d0ccc048a00ec43260bae0baff858d49249c703a8ec5a2720c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USIR39200090.