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 0xd05589d4c8fafe30c8321bc3d3254b947707b341da89e7c2fe1d182810efd715. 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/de03682d-1624-4aff-89ae-2872338db5e5.json and https://artists.proofprofile.net/proofs/artist/de03682d-1624-4aff-89ae-2872338db5e5.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 0x57a8834a2142f86e5367504b9cd6a7dde87cbb0a651ce9148640236b5c37b973. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/DE1KS2406210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73a75f02894262c3a1086396afabc644b57d3084e338cab669b11ff8674c52e6. 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/DE1KS2406201.
Gecə Yarı (From "Gecə Yarısı" Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9233459559de1b72f32ad206cddbc1457ee5aceac21914e7ba922410aac1cae. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/DE1KS2406199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6965cb7d6023fcb512ab38208263074c0eb99cba32c200b0699a31cf8fff0a36. 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/FRX282277272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf7338beed5e902ead908ac1319c5b5553ed1eb89143b1e8008707fe0d436b3f. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:23:15Z), 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/DE1KS2406197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb957b11960744fca8b9abcec09e1327dff454c118bfd5d53e83bc606e131569. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/DE1KS2406194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82034e794f1b525388d894aa1749520e0702a897ddb12500753cc36931916795. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/DE1KS2406185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9eab74f516b545286c22ffcf31b2a44977d5877b6d656b7e11d36801d9066bc. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/DE1KS2406189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86820ed1b1baca7c2d98121931fd159a6757d6151b7ab903802f170b434911b2. Chain 2 (Bitcoin): anchored in block 959018 (2026-07-21T17:01:38Z), 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/DE1KS2406717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad92be3477f606169ff195524984bd261e434adcd7bf63cfcc52be7748c3f212. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:36:00Z), 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/DE1KS2500150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e9bea1e1888dfae9c3d2c286f54bc45e749261c472719baf7b12a7f694d0664. 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/TR6722400045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e2426c8355a2bdd07c19ae97ad03fd3e80000cc5d0f9c1b81575e4c21699ac2. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/DE1KS2501724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b3c23e6a21266282fef76ff27e6e6c1259d7792fefedc5c246f44fc11185fe0. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:32:55Z), 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/DE1KS2503824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cbc627d77581d8e778601624f0618e5dff30845acb686e6020556c1b3a328ac. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/DE1KS2504220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb85a8bb08926ed79e19dad4b361cd7b2b4350407cb1b4dc788aafda63d197916. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/DE1KS2506008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a0bc6b77ff2ec50cf84fdda5cbbeb94e0d3ce1467ba0fe5247d3ca20050e14a. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T14:06:17Z), 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/DE1KS2506234.