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 0xaf8c008315c13c3b01ef0911b0c962c56a93cae9fb4396225da78866a445e793. 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/1a8f0825-bc79-4e76-8e72-0c414ded1114.json and https://artists.proofprofile.net/proofs/artist/1a8f0825-bc79-4e76-8e72-0c414ded1114.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 0x5e754c394dfe24bd24d2d6d0e9078d7dc6fb5680cd139888a072e4b1c9002c30. 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/QZ5FN1883981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28fbed60164a1305f440493eb45e4eecc16efdd69eda3015b960f2aad564cbb9. 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/QZ5FN1884143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f17e657a70a3fa63eeef9601d73694d2a29771ed26de0774de1977aa645634b. 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/USHM21805761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc127c3e8694e8e0979f74c44d40d75adec24b91d433427f0e30e45a1f21ddc01. 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/USHM21807613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbfe9a77a379e9a132783dbab80802cff307f8159c034effe8b4be434aa1c5d5. 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/GBWUL2275302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae70011f13c5ba7f844cadc8fda38427e597d818885e97dcd16d38d22fe41239. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/QZ5FN1884218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f5ffc56feed19a5769b0fc162b35735a3429f9be69ac340d4bbb4d3190af630. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/QZ5FN1932813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2b9211d6141958f54ab4fd1ae9dc5b5bab73a75d0d247812d4091fac878c683. 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/QZ5FN1951539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb6f2ebced2c541d7fdf4c0828a552f0e06b4b650529460154bdefe2c676232f. Chain 2 (Bitcoin): anchored in block 957827 (2026-07-13T08:59:54Z), 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/USLZJ1951000.
Can't Help Falling in Love With You (Slowed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a069c2bd9bb58120f78e51d6b7b64ea0fa9ea27786eb534af7c1d9d8f516864. 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/USLZJ2171776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x093e29af56cbacc626250f6977326941c3ac9570ff4b0819aed0e164d74532a7. 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/QZ5FN2240261.
Running Up That Hill (Alternate Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf656e87a055765b8fb85e8ce223a9329c32ec7a8ce6f9e793be8204d258754a. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZ5FN2240630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x404308431bdec2163973ef5ddb5b9ff770004e5d85f63c8b29c6b7878bab5bf7. 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/QZ5FN2240625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ae9b904226ce1749efa819225654cd3531e1fc81ddaa1bb27cd328280903fb7. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZ5FN2240631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x804887d31ffebd6a35035fd633a3f8096a94a7a52b663ebcfee9363ca2601bce. Chain 2 (Bitcoin): anchored in block 958681 (2026-07-19T06:14:54Z), 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/QZ5FN2240628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf429a0303ce923e85170941b30090800dd5e393613d139aa4647902be828f8a1. 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/QZ5FN2240636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7912f8d656e03b141f0d8b0dd81bbfe389ff0581f316f388b29d7aaf7f4b8903. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/GBWUL2279625.
What Child Is This (Greensleeves) - Humming Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x930e41c52a92b084481aa27c0c32855bfa426d1e05e11a21e534fb7449fecca5. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/GBWUL2279635.
What Child Is This (Greensleeves) [Slowed]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x315b110c796542554c713cfd232f0568c1fecfc1351711b2903639ce703b17d8. 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/QZTV32370505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42670bc23bf8d44b930b883e803d86cff70d8ab88a5bb14d00206278f929e305. 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/QZTRX2310251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a910de34044b9035d43e73752e02090317316ed827a500f9567451b287ebb0a. 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/QZTV32389638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f765c001bff475e78aff137665908db3e9484b306dd3bdbfaa4514b3fdbcd65. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZWDD2382672.
It's Beginning to Look a Lot Like Christmas
i'll be home for christmas (live acoustic)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe5d98aca23c6c9ae1e6b28c234e469b0f4b22141ec37a9db52e365246ca9613. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/QZZ8A2385753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcbdb93ac7e3b9d3dbcfeaa76f7ec37eabe28fd1e44066e8132917385013dd1e. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/QZ5FN2455366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x869409a8b3c1e9e826228c4bc18d382ad7824e8d2b0000a5161de5274f0998a4. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T18:55:55Z), 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/QZTRX2408511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c6bf0ce676e5aa136f7c1f4714a8de3ca6a42e9d60c7c3b97bcf76333999ce0. 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/QZTRX2408545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75de82910a7dd38cb17d2282937d886f34a5d06500d6dd41ac2259328c7e42d7. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/QZWDD2471493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1dfef01cef370a3c74b742dfacbbe685d2a0a33e39781495fe4bc954497fc09. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/QZWDD2472239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc707593617012c56a60b3d43097ae02b7b69b68369c7137e54b8977b093fd24. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/QZWDD2472888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc36c7faad49726b825dd9f84c4ef205eebfa7a80c476de27acfea41743fdc671. 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/QZZ8B2457695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6854c0ed788c8d36c418cb914915324d8eb9651f03aa3df655bf776cf404886d. 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/QZWV32448946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c2f02ba15b0f8d77253e638db2ae9e5461207048ce936f29fd196ccba2abda9. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZZ8B2457697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc36c7faad49726b825dd9f84c4ef205eebfa7a80c476de27acfea41743fdc671. 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/QZZ8B2457695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6446c18cba1bbfee6b87bbbc4708eb3ad47d167d99d84f682d2fc0d01bcac0b0. 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/QZZ8B2457978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c2f02ba15b0f8d77253e638db2ae9e5461207048ce936f29fd196ccba2abda9. 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/QZZ8B2457697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d8d76e6fb8601227f8adf975c27f93a5e0e9469e72ed2956ad57c2d75b1b25f. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/QZZ8B2458000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fbfb2c1610fdac9f4c8e8ee2817e9c2403ad804de079c74cceddddce2c68d7f. 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/QZZ8B2458001.