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 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 0x215c8ea5b1dfe744aafebbfbd8cf9cd79de68d7f8fbe10dff100ba8c6acffa71. 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/9ffb49bd-4a3b-4f48-b478-00a67d4b7488.json and https://artists.proofprofile.net/proofs/artist/9ffb49bd-4a3b-4f48-b478-00a67d4b7488.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 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 0x6c2a4b91ac246a31714f6e5affc87bd40f77bdbfe89e0b6ea1c2c67ef4ce1aea. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/GBSMU2663930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9959917633ad58649485529c1737cb9d40a81a5939fdf8cac1abae2ca8b1796. 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/TR1630650210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e837d6216cb6c7c599a3c2d7d92afd02377c5c9b68c68f260ec15877c3b2bb9. 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/TR6641100125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x657f290ca070460cf8586077deb5e756ea345d4fb31ab026f2dd7742af8bbb28. 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/TR6641100126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c53d75bedda28db537abc73878ae6c86bfab48d84a9d251fdb3562dcef9c138. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/GBSMU2465548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc58c0a357fe8a87614a76bef97ac3d00de35c465f4d52f60132c7b06a88d1f67. 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/USHM82014821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x037aebd738fbc5a6405fe5349b44f9e9686574bc7baa9607c7956c394d0656d1. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/USHM82014822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43ede6f8e628f9ecd35d6ab79187d065a65de0d9c92b09285e764dbd8cdb9be3. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/USHM82014824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaba085331c7bbe0712316efef8b5c9acc63073d0447add8435f41975eb5ec1e. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:20:06Z), 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/USHM82014825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e08ce126a08d73e85296ab73a68ff4afe5848114f8a45d377a8d538a0be633f. 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/USHM82014826.
Mahşerde Kur'an'la Haşreyle Bizi (Gerdaniye)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf94089d2ca8510080250eb8d33fc41818bec6657a65fe04df19b1db4eb7a643e. 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/USHM82014827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10faf68781d5aec223e8780440a085340f3696328881d145bab1d5eb945d235b. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/USHM82014830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4614127e633049332744166c46400a29a10090f64bc780b91b51d17cfc4434af. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/USHM82014833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4676768b96d8312703ab9b143fc481eb0f69cab6d967ed78c419436f5b1fef2c. 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/USHM22081870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9662fd590052c7edff8637f0a1f7306c7a6e0eaa886e08589d5fe3ed0ee64a1. 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/USHM22081871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27989b3c6fd35779808b9f113d9d00d1348d753bd0e1bd8a14704217818a09a0. 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/USHM22081872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff83d1b8e408cf7bde3125adb6f4229399f64f020f9d0f3a87fe45e9a015dea6. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/USHM22081873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa13d3b4e1cf8b79e65104428d0e59104c1736690fe136aa33bea9f33c90be481. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/QZK6J2246983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47a7f377be8829295a8c81aeb682d2dff2b59209e683440f4a603dbc58de27ec. 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/QZK6J2246986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7c707b7d610a3ad895789c72f434ac38eaa6147f19406f879e2c19910809889. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/QZK6J2246987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26b0346cc44a1e99a289ddf2fa2a7620df67c7ea767b4ff250d36a17a4d31f5c. 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/QZK6J2246989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb077247670903771f505493975876beeac5189a2928d02a003c9ef39b0a09834. 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/QZK6J2246991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27b976a6ce59243133f5cfe4b3d22d5e37fa52189a2a4987890854cb5654cbb9. 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/TRCCB2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc7d0ffcdb0da8551800f8794125afdcc3fe21d78cc09d897774f2bdd24ed0a1. 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/TR6641300042.