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 0xa5a32918fa5b9c37dbccc062141d3b94b1f4e2b40a3ecec42b2551406bcc4a73. 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/f83ee6da-bdd3-41b1-ba41-da247518ded8.json and https://artists.proofprofile.net/proofs/artist/f83ee6da-bdd3-41b1-ba41-da247518ded8.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 0x076bb8923fcbe722461098eaef037a278a3894c61bb402f399597db7e95556f0. 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/PLE781300802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3efd62e3b7820822f23e412a509f302f9f5dc9b51c744da7a85d03186fc85c32. 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/PLE781300804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x282839e52f601567c25296ba830297049055da297f441627229cb1a8ae1dbb28. 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/PLE781200057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c20e75e54449d42160a04394930da8218f2f159344804e048779d35a711d527. 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/PLE781200059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d7df6846a743aba873f92fa6181c1eceefc816d050418ef20c0d46e7eddd00b. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/PLE781200060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3abc605a61cbf1e0850fce72cf650a3998373a295a1083700d272aa5083669e. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/PLE781600112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x387bd8e79ac36703799c28177ac3287acd367d4f310b6010c8532935eb7ea380. 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/PLE781600116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac0af799e8347eeff7ba473f85df085810d1b04eb2af2e3585f8414dbf363b7c. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:06:56Z), 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/PLE781600117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28d455a198deeb5ee43546b3c5e7c33aae51b769202cf38894f262cb8fa2ff63. 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/PLE781600118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5519ea66039c0f364837738ad9d9f39451a5ead8506060167a6e9d645c5c2ab4. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/PLE781600119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x589e36a9e7ce67d91cdc7832ef2db8a4770dca8495fdbeee8ff379fe94ededc2. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/PLE781600120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3e875aa74c27e95573ae58906fe20c0cee22fcb9c324c7b06a9d026171041b1. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/PLE781600121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cf9b44481426b682c7031d4b1bfda96f70f7ebf828572c4df98582dc3e91964. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/PLE781700124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe79b5cb0847b0af15319628e39ad4887f030e15cfcb726e41b24ef0b66b08b76. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:25:48Z), 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/PLE781800081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86473d440a334c3f150300e9e272a0d4a11494ae601bd1d748c6b44e5dbec59e. 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/PLE781800082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66fc48ea467258b1cd5067f4be9d8ebb59fd6ce046aa281dca57b7f79be412b1. 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/PLE781800083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x687a26a541d6ca5e568dc71d778c4902d0a9d2511930e661dc244db76a79583e. 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/PLE781800084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5e90159d7993d673389bc7166eb6326d6b06dcf18418e0f3aa830ae5427d8a1. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:19:14Z), 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/PLE781800085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd28b94506ea53869113025abbc04f3ac8add523edb619fae4fadd3696ea98d51. 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/PLE781800092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eaa812959d78ef66308bcf6ca090566c394f819661251c932e8664234d98cab. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/PLE781800087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x319703c5e04304e23a6111a21021fbc5b26d1c30d3883036bc068ceddb224bd1. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/PLE781800088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x858c6b67d49675b2cbd92aa4e75e94eb228f2bbb4133adaeb1579e3472752208. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/PLE781800089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1c6565e7877032c0827e3fec67824950e8e148d5ab0d4deace5aa97ec498266. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/PLE781800090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fa3db79e1c5f56044799b8fd107cd309e78f2c4fca6b6be1c600639dd8a2b38. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/PLE781800091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x294821fab88a2a8db8eac52f7cc3a5a8ca098a3c49fa692e37d6b30664292bb4. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/PLE781900108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd31c52ec21112e1d486700b7524816cf7a995d9b2e81573a8fbd1cc6a7ee9202. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/PLE781900112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b2fb9e3a5dbef76528af7e8798474e96a97a0451aa85c0f386373d3d0e1db3. 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/PLE781900113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce4bd5b54cd9818995a574052d9cce499255441bba5894323060638b9ee4e952. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/PLE782000156.
Nie zaufam nigdy już (Figo&Samogony) - Single Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa51b44c51b28091ba8aef2bffed98f7aeba5182bf2a8efa4af0f5dee1b737e00. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/PLE782000235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4bd9e1c6995c9a55b16be19974b41f05b770cd94cff9719d7d193599f101db1. 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/PLA552500922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40f5a16ae830b47f440c0c0fddc6a155020227e87d2d53e0fee614f03b8e17b2. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/PLA552500925.