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 0xa537c09a5879b9bbdc1f4d767cdaa87f09e44072fe1760ad6a3c8f04966c514e. 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/c0c82feb-4794-431f-a246-dd3578dd6844.json and https://artists.proofprofile.net/proofs/artist/c0c82feb-4794-431f-a246-dd3578dd6844.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 0x0d66db1a0e62d677b3ae88d73a4c778deba6ee3d55cf2941b2314a546b88ea84. 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/GRE016600794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcbb236857909c1622a46143a3c3014ba911d132f6d8cd99070599cb82bd314e. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:29:49Z), 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/GRE016400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x275b5799d4b752cb202fde8d0f0afe2b021b2407d0ace520b0158deb62f15696. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/GRE016600384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9334e2f0505c1dcba252d08427fbca742d6c210d90c6a0c50aa14220b47d7bd1. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/GRE016400059.
Laiki Paradosi - Tragoudia Periodou 1825-1940
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25577b5e233dd5689126372d3b8df1f4418be73ada94b539382c42fc1d9b1bbf. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:56:51Z), 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/GRE017000295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97473a8bc0cac673819d8ea8c8c92d8be71c2f108d63e7691659aa0cbba9034a. 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/GRE016400060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f43707512f02113409fbbeaaeb41f7949385865c084bf96b640ad34ae0e1d11. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/GRE016600089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa36888e342d5fa24c84c48b46ffa0d3d8384803d07c9d1ccab40613b8771be91. 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/GRE016300622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd87028657e1552a3f2314d79bfaabb42f374ac4c61d02c9703b692718986c9f7. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:50:07Z), 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/GRE017600017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe75bc61d2906d27fa22daa6f13d15f782ffb1613917816f53296774390ab2c82. 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/GRUM71801371.
Megales Epityhies, Vol. 1: Deilina (Live)
Megales Epityhies, Vol. 2: Ta Trena Pou Fygan
21 Megala Tragoudia Me Ti Viki Mosholiou (Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9318877541c64f870cda7c93fddaa1d913644546eadb687d86bf1800cdea94b. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/GRE010501403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38b7830540febce5ee13af0ac921e9edf949943a37b3ff0855689bbb03f582b0. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), 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/GRL010700247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x653b47a53d614d827a11534f238f1cfec25a52fa1b4a11fcc5db901727cf6e42. 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/GRL010700250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ca80bcd5c421acb36c8f0e6bd2660e8820604bae606a2f5839836b706c4ff88. 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/GRL010700257.
To Tram To Teleftaio Kai Alla Arhontorempetika
O Tramparifas - To Koritsi Thelei Thalassa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7839914041b66aa6d77cc2d7ebb59fdc4f9c4190c67dc55699dc1faa8d8a757f. 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/GRL018000066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f10f1c229879776563b07173000f2dc427650ffbaa3c4cf6936834694b2db3f. 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/GRL018000069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1b3a04d7e2d53da9f4e092c2c6e67ccbb939d4cdf630c4991e47d52e77a8ed3. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:53:34Z), 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/GRL018000072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c28856ca881b31a410090029fd0ae81cc65f4458610d67b06650ca8e40464ee. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/GRL017700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98549b6fd225f03152dff9a2e30e6b5f09e3056e0fd95f482985400f4ee80197. 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/GRL017700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe30dc73b9829d9d2179d36d385003976bf6d93502a69e3e656779f0eed8178eb. 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/GRL017700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbec09c948500606115db64c3a83a9d6493c5a6866dd346db9ed852ec0a85fc65. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/GRL017700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x906c840dc873b61e2f479768198fc2360ce51d399fc3c0ffad015b4e3fa8991f. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T17:14:13Z), 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/GRL017700005.
I Viki Mosholiou Tragouda Eftyhia Papagiannopoulou
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69c507e1035783fc45d192eb16c438326f760a2dae4c443f47c406dd66b23461. 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/GRER19500119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d0a2840bf732ec39d119518ab0d71418deedbf1dc6b92f86e98727c4bf82b89. 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/GRL017800101.
Dyo Kykloi Tragoudion (Otan Se Perimeno - Stous Anisyhous Dromous)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f04a49b37fd0ad29f851f2612443a9317ed885b65bc3df5c0ec53867f854018. 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/GRLE10201869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0136b905a78e7a613d1efb3a0d4fd7a9c145b5b38c8fb6ade6433322c0703408. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/GRLE10201873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcbb236857909c1622a46143a3c3014ba911d132f6d8cd99070599cb82bd314e. 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/GRE016400002.
Tou Kosmou I Kiriakes - 45 Hronia Lefteris Papadopoulos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb1435ee27495f24def44e9d57decd9363af64acea41026429b608c49cb50616. 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/GRE016900233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadf4317f262f83de3a5048f5624a608528b797a6dc2de78bc5782c8cc0f62f21. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GRE017000442.