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 0x9c47e5a04f5147d93d17bf690e7fbfb2ff2a60bb7798a8c2262c757ee995444d. 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/f19cfd24-3c0b-4e46-bcfa-7957b0d837e0.json and https://artists.proofprofile.net/proofs/artist/f19cfd24-3c0b-4e46-bcfa-7957b0d837e0.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 0x9bf27d37e228e6dc2320fe4845eef99a390d847cfc3b44e6c8acba4ee5f278a0. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:39:05Z), 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/FRX201667228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b89bc42348d9534c5130c914a7dbea342157138e07997613fa4291fb020bce9. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/FRX201667230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25bc04bdf19f3fe56d058f2b303fe86722328078797db108896238f3b512e347. 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/TCADY1833414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c0d7638e9f5c20906a7c9b4efd9baeef2b5bfba5b5ba51ccf5483caf37b285b. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T15:52:19Z), 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/TCADY1833431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdca11965c874f312e65529194661b5ab6ead5a469f0f0a27d6950a8f0d77e7a. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T07:27:09Z), 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/TCADY1833434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7002c05c080f2202e620b4d6e4fcf129e8f32659a1cca67230b0179a11d7c5bd. Chain 2 (Bitcoin): anchored in block 958882 (2026-07-20T15:34:44Z), 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/TCADY1833435.
Inilah Aku, Utuslah Aku (Yesus Layak Disembah)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecbcf230e9003c926487ea4f5b8d4f71b477cd4ff1683bc144b0e3aea8951a25. 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/TCADY1833442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf10b5e9a52882834f7c77a44b097d13682a49e438b6a93454f465b52046371a6. 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/TCADY1833448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61da7c6db540f36cbafeecc503acc5d8af4797e9d0b7499e8afb65f697710ef7. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/IDA142001547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17351b7ca987ff93b5ad294971bda84feaa0d74365c59f173ddc2dfe768d9b2c. 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/FR26V2085754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9d21b71c44784990700de6c6e04e8f025beb2d342146c2965fb6598296c75ed. 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/FR26V2085755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff4bd7d1149b7cf9c80030f34e6b78b1f0f268c87ff27d29a7bbfe45ebc46838. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/FR26V2085756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dbb13482ba64ca5a2794b95cb4483d961c67e6433e644be23a82381e4130006. 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/FR26V2085757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14a9e2798f3d4292e1d44899f8d968d026697521b893fc99cddb216471d24aef. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T15:36:11Z), 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/FR26V2085758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc270f83c4c0eae7587556dcb8ef6c2dbd9d84998b64c4256f440a6dcd12190cf. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/FRX762085186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7db5558623c4497ec7a1bc9b49c3be96b53a91351060cdf60ae25ce3b45e3af2. 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/FRX762061875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52fcea95ebacc66869963785c846bb53a2034e16eaf608e74131e5a2c42eb1db. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DGA072174205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7b54d683276c434f20a55a9ec8187bc0d108fed41d97ed84ce9abdba887ca49. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FR2X42183532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07b1205efbc6de79e483b300857f1d47c280580ea8de6aa9f14733a59cedab9a. 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/IDA142103794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc113594314cf3424a520f244bfebabffc63575449988e673abd3fe88ed5b4a5. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/IDA142103795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d416cd46d2894d8d56d9e10c0bb6e54c45b92eaa8e3d0baf4253d7af326798a. 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/IDA142103797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81f07f261c15286e44acb617689eb4addca70a4d2821e613f660c394947dbaa6. 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/IDA142103800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x880e897f34e1791d48fd7d8c59158181d6f613540b14dfebc44d1e7dd6b9c499. 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/IDA142103802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdabb6b04d4facc2b4ea2c7251473b83dff1b6638ded2710865be6e8160af63e7. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/IDA142103866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x872deeb138c20efa0d94829cf869039e2949fa81a6c5505dd13f920de063722c. 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/IDA662501906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1edc1c1666c2112c31ecb69ff494d9a554f7e9327412467a714fcd80d9cddadc. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/IDA141503979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25bce3a1f08410ab92015d7d363f0dbbccdfd7b5737bb873a43fc5cf44e05c1c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/IDA141503984.