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 0x916a621d2a95b3ff8829f7a377f460221140a23bbf8b6e9e922d2100df45639b. 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/e121a059-b3a1-4859-b163-10808c25a9b4.json and https://artists.proofprofile.net/proofs/artist/e121a059-b3a1-4859-b163-10808c25a9b4.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 0x908c134a796543f66f8055bb764946af49f8d099329a98fb24f93b6f64d5078a. 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/PLD500900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0a17a10405ccb17890ac99c6d61d4613f81d00c2e33b15c11ddfdec50940f78. 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/PLD500900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x147140cf0015b6cdf52de914a0cd2cd722085d2b6206cd5b5de06e296016cdc9. 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/PLD500900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcceba17e8492924296dce6ff9713786e6f10949dc65dc990224e5fe33b3dc126. 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/PLD500900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fee769d1d3a977805a8633202142e6e61d18336cd98424c0a19322655875d16. 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/PLD500900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c2611577785dd08560a96eff5249d46bea72b5a039d9f810f3bb18203668403. 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/PLD500900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d465e839b7ac88344af037256923d979cd4cf57015ad868560ee609484d1c6e. 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/PLD500900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12ae6ca3b7b4c4837b3865aa1551b3aad91f1b3863d3b933e85d632892347734. 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/PLD500900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83a6eedfc88d591887c17103c8d234f9155f1fefbf6231c7daa8726379a8a452. 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/PLD500900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe1051e5fba9becd05950d807ded4424cbfa24b93e35704b756d318754ba78e0. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T10:10:29Z), 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/PLD500900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fdab3aa11b6fda600bf7b939e45d871520ca725e602f28ceb8e20fff65d9029. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/PLD500900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc9af7d2050ed6375eeaf02db93a83f3ca964ad4db6342d1f253b88596af9c84. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-21T17:16:58Z), 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/PLD500900013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc82bdcadaa87be001e221d66c0dad4732449b8c1db32f9a57b6ae5f14ebdf9be. 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/PLD500900014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf98ac3ea34d3f1923e24b3e0d540e17c00290bc50a3c3fad8ac12b9747cae779. 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/PLD500900015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c40b56033ad3fe19920d0bd78d0333adefb587e6099e5b73367b933238adc86. 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/PLD500900019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe551e44fb3d5eda3a36c228fb2e8568876e01897d2aa44a89e3458401e0dd36. 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/PLD500900021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49fccec0b4fab90ffc9d08b411f3de095251db5e9e0cc8910d460660b0f51228. 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/PLD500900022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bd4e3f99524ab742c03352d88eaa7cb89590110a241d638b4cbe3dffd2129e8. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/PLD501100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77528378550beb51e42e77a2bd7c74e44f313251fe3e27a8e957eef6a8fb9142. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/PLD501100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33ef02c46fc31daeb276b0ce4b4981f70362a790346e6ff6466c63821e18035c. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/PLD501100018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x073a27ef5d10fa78c58357966a2c217ea0ec0f9a82fa9b3e12927ebcd0120c60. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/PLD501100020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x229209c6f42c54868af271a3beb0eeab92aff89ea77511fd94c5a61fc387c339. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T07:24:20Z), 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/PLD501100021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a45ea7cdab7c1fba005e4b7836af32e75255acc92f52faec6b4046f922878de. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/PLD501100027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12cc08d49f7a8ed8d7f32402c0cab15fc506bb6adfd4d99e87fc9df91211f906. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/PLD501100028.
I. Nie będziesz miał bogów cudzych przede mną
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18dfcdd88ddb6ad2f0783858ec79f36f10f76d3246749714c8e68bfbdbdd4e4e. 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/PLD501300042.
II. Nie będziesz brał imienia pana boga swego nadarmenie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bb6242641f90ecebe533b94e79d7ab6180852051bfdf767d6af7c1423dd248d. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/PLD501300101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc74f1fdf700a13053f77effdf1b998b07461012fdfd536f8a199d45a3e4bb1a2. 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/PLD501300102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8714970d4402225268248891bbab3464dab1f7e65fadb09e0d8e900cde0e51f9. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/PLD501300104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x269a496875add2550f56e35dca19347aae22de65958943125991fef61a823e8a. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/PLD501300105.
VIII. Nie mów fałszywego świadectwa przeciw bliźniemu swemu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6e76416df0f05f4c4ec000013ce10c6c33653e13603f25ae81338100e6678d1. 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/PLD501300107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0a3d4433237e4e96d95892f2fb40a1aa2a735c24a59cef2948c2da85a2fb0ec. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/PLD501300108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bcc57e4e8797be5ce4c82c99ab908340aca32280fb7d03418531b7121eafa75. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/PLD501300109.
XI. Kochaj bliżniego swego jak siebie samego
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5541efa6edb66f454775791b89d19529d19920f25748bb108dbcb94f1d854999. 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/PLD501300112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bf3452b2e4b615cc3a35e9a1cb338ede32c7775b4a863905ba180d1e50f4ae6. 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/PLD501510101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47ab58751ced32d461b615339254067afb136b2b4ef14072d8317c28a8baa167. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/PLD501510102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e47fbebe07b4ef05d08c5049bc7010e76a6e115c3b018ce64adaf10a60c9f5c. 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/PLD501510104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0dbce23a75fd7b5d8d4b4df59443f48c08672fc312dcc616eaf25048b1d7cc7. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T21:01:21Z), 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/PLD501510106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d41d5b651f9fc7f8f14ae80f988654ebabef98c4d51bb2806627ce0cd10998e. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/PLD501510107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x698b4252a24aa1191e6919ead49ac3c8b35d7c9694116eaa604b29ee46931bfe. 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/PLD501510108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0730e3172348f9cb6847f6a24adfc5a89a598c087d8e5403bd12df57ecc51a05. 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/PLD501510111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d8f65b39d6a2b49cc59f3b373204134c6886ac668c3b6363c4a5bcbf358783. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/PLD501510112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dd14461cc120caf0aa8bdc23ca614dd634358981b4068dd17be1fc0753215f8. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/PLD501510113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9075c3c355a1c19fad3a6b9f5858c130a4f115f217177957b2b73199df45c025. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/PLD501510114.
(KSW 36) Trzy korony (prod. Matheo) - (KSW 36) Trzy korony
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedae49d8bc130750d6467d5ad63a2ff160c6004e9d2580bf7dd55cf85c2b912f. 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/PLD501510127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a12511bbcad238a8ffc2f644a97240994ab2c1fdc46eb58ad594ea256d441fe. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T13:45:23Z), 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/PLD501700117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92e0824af3082253868963290b27f842673945b8b1c99266cbeb6595cb4a0e4e. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T12:24:20Z), 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/PLC062112140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd514c8e834e7d1e1d040b810773af9fcdec4c07a46327c066f12b48f4d670de8. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/PLC062112370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b7122018c93da621e0ece9149fec1784daf120635e8fd53194530c9aa59b805. 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/PLH172300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e43953630bbbbffd961658b87e42b8cabf4406a537d5f81bec334b961b32fa. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/PLC062405184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa246fac8308d704bf7d55135fc0c37f42cd17f8d4c0e1f3a056a9214d41132f. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/PLC062436180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3455c7c27ea2258a24c7e91a49eacc45bb405eaaa0963e6ce329f5281e378e3b. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/PLC062437097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20745c8108ca9cd2652618e9458717fc08b088ef5e0384cc1c360590e30ce055. Chain 2 (Bitcoin): anchored in block 958666 (2026-07-19T05:00:30Z), 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/PLC062437098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbe594fe9549884bfae706189b2cb0fd19705120a61179ef524c5fc2fd3c8599. 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/PLC062437099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e43953630bbbbffd961658b87e42b8cabf4406a537d5f81bec334b961b32fa. 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/PLC062405184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3f74cb1e342e0a685edbba00d16f48e1943816181796eef25fd3832d2eb767f. 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/PLC062407498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f998a664be086c5b8cac070ef737d1070cf1eb594a5adde1f21cb33d885c675. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/PLC062532892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49395ed011b70545fd5e22a423131788481ede22622c59bee9a03d06baf5b9e1. 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/PLH181200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x520164f36f7040dbfe2f994e9cc616eafee0d2227cc3a4526b4ca725dfefae6a. 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/GBWUL2026115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf4f8b5983ed77cf0b40c2bb839fbc02b6f9029933c99110ae8e7165d7a8a7b5. 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/PLF241401384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca91f86bbbf11f5c20987608bf2ac16b3d214204b189560719e186c14eea798d. 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/PLF241401247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe22ef1758a7c9c79d2396aae7936f76f312e3e47d5bd2e7e2ce88966888da88. 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/PLF241906112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x285f83e7ccbc7420f5f7ae5ad53797a7708702b2539c8173ac081201c0033200. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/GBWUL2026114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d2c36f079ee6bc3e063c74ec18168428136c011dd16ec5dfae803960755eed1. 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/PL89B1900232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c49cd3cc44966663aae773a9b6a1260010912f8001b2791210846bbde7431f9. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/PL89B1800012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce75aab6d01fa972217eb1660b751bbc39fbb6ff61a7d4bfcea1a27430fb0cfc. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-22T01:11:47Z), 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/PL89B2000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e203c7ad56a5b71b6952994e170c9fba4cf3241943734e65bebe6c3dd1de554. 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/PLD501700280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x008ff73dc3a67e39ee28aab2c5fb63d17b2b048ce4ff789b6e02cf5c6f2e4e00. 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/PLJ511300026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14af5c92c58bb767c4054ec3deb0c9bb87ef4d123ed1ddcf249d2b773cefc6b0. 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/PLS211600020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x715d0705e3d62b5a56074df96f2c1bad70be10f9b405c1d9cac595decdd124d4. 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/PLD501410014.
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 0xf3b00b6016959e7789a1331c1a6b8532ee15c272e4f17f87e4ed214a5e1312f4. 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/USJ3V1222650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa174c8eacd1fdb43585d77c46eec103bdaa1a1cdb6c778f14390a73b8229f12f. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/PLC061806525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d8dec90e4bc8aa4cf7856d91683ec37b943f19f4251e23865a0f5647f398c8b. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/PLH511200276.