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 0xe5540ebc2d88ce9848ab2ec388f766c5ee117c6418f45205b960749536315283. 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/dce6b9d2-83f4-41d8-8d12-dcba2f832c01.json and https://artists.proofprofile.net/proofs/artist/dce6b9d2-83f4-41d8-8d12-dcba2f832c01.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 0xa90bccb5a13514cedcdc33cea0d4d915f4963362a84b7996efdb0b703ac4259f. 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/QZ4JJ1973927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66b96a25c079d126b20e044df1838cae55a0a29ad94f11c7ea9118a82f9fba0d. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZ4JJ1973929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e30b9c7c6d66722e4cbfde16e6d8174782eb22ba8db2a60d8e457612038a75f. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:47:55Z), 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/QZ4JJ1973931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4ad70490dfdcc2b33554c8cb8a7cbe1b1bec7f7f072b13c2d4ade561bf311fb. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QZ4JJ1973937.
Nostalgia Ain't What it Used to Be (Acoustic Recordings 2008-2010)
Nostalgia Ain't What It Used to Be (Acoustic Recordings 2008-2010)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c5f13b4d7a43bfe6f6a113c30ae3ebf84ad7c67dddb787f73ad9e012653fc09. 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/USLZJ1786561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51cab31527079c58f5a45cd79d3cd6323228f1291e49a64a7411e35d59f5b36b. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/USLZJ1786565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c88322418403591a80863cd2b6cda13b94c080cbd6037392efafbbfdd30c1d6. 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/USLZJ1786566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9a8bdfdc9ef50f62f83c51ee4ef273bdb847821461e4420b16ebbaed9bd90b7. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:49:15Z), 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/USLZJ1786572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41420cb9df55fd2e49370ec1cbb1a7245677e8e99cf1950f3e05ecd0df090c6f. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/USLZJ1786574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe11274e2711ac7179e2e7baea7efb5767e3da3e70b25dfd5567787442a22fe14. 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/QM6P41949766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6970b5a8c0c2d27f1e5d045ce8f5550f3dd1be2c1a013f8fb4f3ceec1798c3a. 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/QM6P41949767.
Clean on the Other End/The Girl of My Dreams
Seeds and Stems, Vol. 2 Rare and Unreleased 2004-2012
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x193e7faf28208d30539093f482fc511c73df7dcd9ee10d41eb234f76cbb6f7fd. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:00:43Z), 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/QZNWT2231808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd96be2813f2cfdfb94666fc9ffe196f199ab4b7dbca6e74d448586817241f47e. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZTAW2239175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3972cfbe157c66bb04582ce97342abf7ffbc839c0168419eae3268e62f2a6556. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZMEM2465706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x516eb3dafeecba6e6be99f3393763c922e2b9b515cdc43e3b6782c004234b278. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/QZWFQ2492972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf373b1798dbbf1887f839e7d0c2d6dee8b0348cdf690e44fa8abdf80c7c9ea17. 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/GBSMU1702649.