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 0xa20070d2336a8ecc5626de9f8b22dfb858ca6b7c953b6f03f7debaebb67c6bc0. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f9108664-0028-4b9b-8567-2a177bd27faf.json and https://artists.proofprofile.net/proofs/artist/f9108664-0028-4b9b-8567-2a177bd27faf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Enter the Dragon - The One That Got Away
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 0x24f16d57caacc2f06e6bb53f8a70985aad1c2a3921107f72b710c6f433529d3a. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/QZFYY2451890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x684f8b5b8d894c4855311e69c64e9b5eeca173eebd06a5ca3b363a7cc3c84afa. 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/QZFYY2451971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb19d1e2fe8edcc1d1fd613aa62f3be7fdc409c00c15f970b2166adab5f6759b. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:43:40Z), 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/QZFYY2450460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb700a153549e65d74598f691c6b3245093da83c50dfc68c7b6bdf146a06652e8. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZK6G2484185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x922b0e4873236c4ce384c23a3d87fae31371cb8a5342d0d31d7c563544970b04. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZK6G2484186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb199ea6c35a4d02743fca92b6d22293b9b6517447258f47099f9834198c6f78. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/QZK6G2484187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3349e193dd94024b8ae7009a52575f4aa5e6e5d1ad3634e468ca4b4d8c1c7a2b. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:20:28Z), 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/QZK6G2484188.
Sometimes I get so High (Sometimes I get so Low)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f4b6723ab515c8c98616f3833e35101bd8cb92b41ab7bfa591611a2b9d4790b. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZRP52467963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x867055bfa833bd77ff453fcf811e3aec1981c5e18b431073a2a730e4b7290b18. 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/QZRP52467964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf6e88efdc8017773b8b489035e9ddf1c60c3c31facef71b13f0b3e890dbf2f0. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/QZRP52467965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5f0c6c96c262ce49db55da51466efb9cdaec598d22bb2bd7f0cc986789972e5. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZRP52467966.
Santa's not coming to Wales this Christmas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5f6cb30e196946de32e01f2ef179723f482bb10c6f79924f1ad23fec7508c4e. 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/QT3EX2449786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x694c96a10450147cff85d44a3fa70aaeb407b3942142f72962c6b21f35d933e3. 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/QT3EX2449787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80d0d7f14305fe400db95147618e4d02d9f8206977d22c1e401064f76f222560. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:47:08Z), 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/QT3EX2449788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec74ed0d6349b49d878d04bdbef40dd1f8aee21c5aec76329910c47b37a656bf. 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/QT3EX2449789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x442cb413047f2fa1982b48bcc4d01252a42d867275361c68fe25a8b6f31395bd. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T01:50:23Z), 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/QZK6G2548472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8f19aef1778257d341e167cafeb898fc75c6b1c59fac3a5c36fae43f81e0a80. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZRP42543173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c7476940e6644f39780ea92459e14efdf16a6c00f26129122dfaecd91260616. Chain 2 (Bitcoin): anchored in block 958861 (2026-07-20T10:02:52Z), 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/QZZ7N2529090.