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 0x55b7844ad875e7f9e27898385dac2ecb8984c51d21c4b75a07a580642f0ff9dd. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e4aaff7a-9dda-4447-b64d-90eab94b2835.json and https://artists.proofprofile.net/proofs/artist/e4aaff7a-9dda-4447-b64d-90eab94b2835.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 0x79264d6de6df135876286e1a133efe01b059669a4323bac61d229aeb0fd4fd40. 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/USA561259701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x823d68373620f14335827100b1d4f6c1c1bc7b887eedef64946d8333c4ebad91. 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/USA561272559.
Wessanthara Raaja putha - Reggae Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8beeaf31f1372dade514291d6b5ac7b5931a6bd0b4dfb719618576085c2abbeb. 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/ATR981177339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5870bd226f70522468c2a960dda3f40987627216f102a746257717aca970dccb. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/ATR981177340.
Oba Kamathinam mata kiyanna - Ra Ahase Live in Concert 2017
Jeewithe Tharuna Kaale - Tribute To H R Jothipala
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffd02f36b9389bf033d74960cfb486dab8c74d0b61f160af5d86c656fa4fa223. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/QZS7J2362788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8348c4aa50e559d20823c2dd3730c8fe319d275916b708786fa1734ac3aa9c0d. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZS7J2312729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeb4e1de5448bf7d16156431aaedfa59db1e0301bec903212f84ad728d643617. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/QZS7J2354097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeecf4e3d4255f4e1f1497999bfe5691f10ea7799598d38821246dba0761a976c. 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/QZS7J2339842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x408d7e75e46be5d6341fc8a975ec268b42605023c9acfd7ec86f5446d948b0f7. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/QZS7J2322456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa01458d64fd83edd6f8b35c86839bedca50428e77d5ce48877fcb1cdf24b962e. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZS7J2388676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec8a8ee7848f3053314d1c7dd0569ccfe836a356b3745f7010bf3397297203e7. 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/QZS7J2343079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a194d7cbe731a4d5a3616673760187fe005d75566014fd33b0e8a08b722457d. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZS7J2367543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0178781479f7923449686c54a5808df9f9e2070ed0528363d8a09c9ba41be98. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QZS7J2359605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e1f5b6507357587d482fdb767e43ffac442b01811b1afed2f9af339e33bfa36. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/QZS7J2380509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa90d629c185af1dc294c10a634619e7fee1f8b20c4f12a023451d7174a16f9e0. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QZS7J2335414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f416debd4d445bdbc31c28b0b8beb8d5963a0d3c38f05904b87a54e05f3480f. Chain 2 (Bitcoin): anchored in block 958602 (2026-07-18T19:28:16Z), 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/LKA0U2501577.