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 0x4e0b0ee2a94389e611dd4c4a7cfa8daaa485881a2acc40853ac627bef574ae4a. 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/5cf59ba0-fba2-4b84-9d1e-db0c3d95db43.json and https://artists.proofprofile.net/proofs/artist/5cf59ba0-fba2-4b84-9d1e-db0c3d95db43.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 0xa7d7c0fc2e6c1c2ce636d7341adfcb941707326910f41807fb7a98a48124fe8e. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/DEBT91200085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3406cb26e8808eed0ffce1e19f280d2d2ca505247a117e3ba2c9c701e90981ac. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEBT91200092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e15f7623d6b378e2b1b9db2abe382cb7226ce23789bd4fbb22568a276a29f64. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEBT91200093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ce9c4bf49f34e867250e9b1efc6e5b67aa5a68ffe7253e5985d58964e0e79d2. Chain 2 (Bitcoin): anchored in block 959091 (2026-07-22T05:19:58Z), 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/DEBT91200094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x535228dd91910fe4d39107a302af8a2dc57a00a18302536813fa1dfc76c211ef. 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/DEBT91200095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ff693e1e33f1c14b9bfb7fca81fe4841fcf51155f25d56214c8a1055d3bbf2a. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/DEBT91300080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55ca4d958604c1595b3d171bf4638408f8f0e9aee5b665e523c02dcd2c580861. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:34:41Z), 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/DEBT91400155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe3b9029f50e8a5b7a786f6a75f58b24cd227e5d8519d241569ccc5a4abe8c1b. 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/DEBT91400159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8f28b7843deea3f66a870f067b8b0b1be67a9ed9af3f1f2f726fc9b7e285807. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/DEBT91400160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x610a6bb0b64de3cad0b1256fc5e0048a26d976ec5edf51e8027a2704df94738f. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:09:37Z), 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/DEBT91400162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a43b389bd15e59402be41ff862999ec3a697c75cd34335a8ed3adfd409a299f. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/DEBT91600057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a3073f6b9685b381983152745bc8d43d9f4d3b57219dda12ffe942619633bff. 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/DEBT91600058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea3401d2eeda8a9742ba4ee28af71451dda16b0bd86be5569f7857574bd8d661. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/DEBT91600062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48b9e804ce3a913dd23e10e57e06e0b8280155c67448f7c69251920517494022. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/DEBT91600063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3b097b8f3df9a0c5848c81a8cbd92abd2aaf712ceebbdae4d4e95bbac0edda3. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-22T02:23:30Z), 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/DEBT91600065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4da67cde69960991d2c4c1dc17b04fa2e1ede0ceeb5ca53e43d4d2ba7fd2b1fc. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/DEBT91600067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x560be7c5d80ebef5370dcbc20f7943eb3ae8b68896792c6f248be5ba5a9f4e1b. 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/DEBT91800148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9150c690b6487cf576aa3e3988472c2fc174d735e5ac7f84077f42b46c60ab08. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/DEBT91800150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ae3e5690845a3133b7654b8ba1fa68ad5a26d82d1b27dba9dd6a06f96a49f9f. 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/DEBT91800153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c64bbf1fe5e7d2a8da990c735d3fa4dde6d83eab714356e6faaeb74bed83b1d. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T23:40:43Z), 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/DEBT91800154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x624739bbb295a785b86bce9b3c3f3156f3db82ca14aa0cac1cc4b4460f9d54d9. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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/DEBT91800155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9fef9070b320b38a4d891e82393f3ca9048f117fc94e88b3fec93928ab0051a. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/DEBT91800159.
Wenn die Nacht am tiefsten ist, ist der Tag am nächsten
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff46b6a46c482d06480fd18e0f18211624ce198f5656ddaa5852189f499cce32. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/DEBT92000192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03da8208d4870dd3cb3704ca662b75950f15453d5ef52fd716b1fd8df24b1f3d. 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/DEBT92100237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4af8b2d0a62cdec6a42708a6d296d2c69d3a441e85c22e9a9a654dc9f953b737. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/DEBT92100236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00ed61ff359809c4c124d1b9c618867b75b21d0717442c3c315299a126d78593. 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/DEBT92100238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe53f2f84c9b9eb1b7da511ffe614ba2a0d5cabcc0b50d015457c78153435e8c9. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEBT92100240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e7102b07601d700730813a2dc71f4911b51fb17482b75892a8807acb86f91df. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/DEBT92100289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9685b0196d874e8389ab6dfd1e23e04c79973a1cdcdd98bd07cfb3aa2968950b. 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/DEBT92100242.
Audiolith - Ten Years from Now (Still Doin' Our Thing #3)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae9ffb89218df465e67f55d57632bd0c1f8227f5c678b2ca148b3c971c76c001. 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/DEBT91300189.