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 0xf06796dcd7264467d392d030eb3f978167cd0ad52aa35e3e6a63f9d5cc0af723. 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/ad50d957-a55d-46ea-ac77-d14f130f16d5.json and https://artists.proofprofile.net/proofs/artist/ad50d957-a55d-46ea-ac77-d14f130f16d5.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 0x1a9e6e8f444ca54e33368d20dbc27a3c320ec7a939a3dd23f13be037fe89f93a. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/GROIK1800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x291eedf2ff1677508c8df27895be1a0caf352762c41c622645644f1f2a667293. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/GROIK1800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x703b66a21b113e932b4e94abfc682a0cb08101d8e29a49a631cbe956b232e276. 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/GROIK1800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b2709171c48f02b3203dcfce13cafa19f8d69a16284d98e88c6487b0640400d. 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/GROIK1800099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x017cca4bd1eb48af2db903be64cbe3bff4e08d68e4e8ef8dd549e52e248dc91a. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/GROIK1800100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa608485cce917a8e4db418f708d76655541f2809f8f29139b22c83eb9db4aa92. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:03:26Z), 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/GROIK1800104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac94bdd6bc091e1b4d93e7f44aa801942c2400928254f9b0ee80851815a3df3e. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:00:32Z), 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/GROIK1900501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71c8fb3653b5a0fe1872b0ebc8ec515a7c359ee412ef04659a08cc17ccfa9678. 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/GROIK1900504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b43329f2e443123bd221edc204fac59589e8ec28c33e26197bdc2cc6c06c548. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/GROIK1900505.
Ρόδινα Ακρογιάλια (feat. Γιωργούλα Από Το Κουφονήσι)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61eb2c439c148c11881e5b8c6c906df0668e5abb80bfc7f9e68342fe87cdfabd. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:26:29Z), 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/GROIK1800017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc71ae1faa3064e456a02e469950487f2d6932c7b860491fb9668824e5631fcd0. Chain 2 (Bitcoin): anchored in block 957661 (2026-07-12T05:37:10Z), 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/GROIK1800019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf06ad25d6c034f36cd4776e2b6dac6eafaed8c00f20b19204600824cb979cebb. 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/GROIK1700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49571a27ef665c588d354db563c9b58e266efc8390879c8f58174e1fe348deed. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/GROIK1700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8751cb84ec91e5cd9d0b7e14dd01ca791feb9d5712e92c1949784c58eab7a204. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/GROIK1700006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33b111cf972b8ff4485493193545966bab666114a5caab76bdb786fd545e98dc. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/GROIK1700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f3399a01ccbea58fd0e2520d6e314795c006d5cffbea5d6cd1a11bd975c181a. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GROIK1700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf389495da5192eed1410984c02f9cc512062ccf1440c626d3995aacde7ab2664. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GROIK1800073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9c4ee9e2b68adb5a541785ddc7c1f51006263b3c0fb69e00458c98aaeff1a2a. 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/GROIK1800087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76a342e5206a61211ed26efae0ed938a63f15f2f24d7a6a2adca43332126108c. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:10:23Z), 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/GROIK2000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80632fa85d9b3b3302dcc3d74e89e6758c9fdfaa71cb1ed63df94f6ab2599e06. 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/GROIK2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c02a9b6c646c7a380333eb0214777ae9f05c634b7bcb9f829b4cf12ea6cded9. 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/GROIK2100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42f91be5d662924c0f47fe656595328afeca97ffb92d7cada9a21e02a358a9f3. 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/GROIK2200101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5186995e7fbb38d7da003d4f2d0318d92a74cfdd2e834f9a254bc8964ffcb435. 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/GROIK2200102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa2d4233c3c434d57303c2bbdb9ec68c5163c3ee2b2716bcaf5884a6aecfbe25. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/GROIK2300400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6907d9ae60b293c0ad51f2a651142b79c858f3ca30f978b99abfe4627bdaf557. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/GROIK2300415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c5aa8c30cde17fc72824ceaad98bb24390988c4bbb0d805fcc70f48ebd26f3b. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/GROIK2300303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x109a62d8b968156f51ef3389f7ae0c3d663aeaa1b6d2fbe19b18092defcdc96f. Chain 2 (Bitcoin): anchored in block 957658 (2026-07-12T05:03:28Z), 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/GROIK2300304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1e3e176027473bc8d315e03caa715f90b8701245cf84a16d90af0941fcd6b1e. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/GROIK2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf762d109b82469424c923f7a960179ab1706b366ea08c6d5858ac2bc0cebf63e. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:44:45Z), 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/GROIK2400004.