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 0xda9da390e3014e91e4f908064a41972f64bd683e6e27c9fb9442d842f2607adc. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2439afbe-eb5f-458c-8581-15fa9e95c5e1.json and https://artists.proofprofile.net/proofs/artist/2439afbe-eb5f-458c-8581-15fa9e95c5e1.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 0x4320409238c5a5b805cca9535931fdcc63b8aa203e93d59ae190cf011f9f3b35. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/GBSMU2264000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7f739287367d40dd6ce5e7883765408ceb6c83d5eb99f31af254ca660591aa7. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:34:31Z), 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/GBSMU2290965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdec5ef8ffd61cc9d332fec28baf173cf012ca7e2f389119f891b797b90975179. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:51:59Z), 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/GBSMU2290966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcddc25ac30c113490715051cee1c872a46a5eba9a42a0cfd211ce59d5106ae0. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QMSDU1700204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f70a761a5bcdf4af25edaea18ae188258f2ed8226890f5c0ac70160814c54fe. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QMSDU1700207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d9c79fb74e1fa1c979dc38fa36cfa004d0fe9ac8ae974037010b3531f83c98e. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:07:59Z), 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/QM24S1847135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e26b294126f2bbbbf026e8a4c599cb42e452f0f664cfcd8d7bd6729322d8be8. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:11:35Z), 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/QZFZ72227887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd926bfbba209a65b9a009a624441a06b9b5c879fe32b7d56e31fc8f42a05963e. 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/QZHN72038280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x408fcbcbfeab2abebc8f4e9a3c9a668005d2418bd91851228bd1475a7f28d829. 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/QM24S1928100.
A WASTED MULTIVERSE (The Universe Theme)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c0dbb34e8895d4f16a5350f1fce52df9b3aca96dc4112c5fff6d1012f74ce7a. 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/QZDA62135743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa724e77c3220e1223066a5768ae18aebe6b14852bfd164a2adc8376fb21c67f8. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QZFZ32306403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd359e1df31aa16c48e3b1f6c5feb2029ffc58ced7519b0070620eb98bd2a2eca. 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/QZK6Q2350477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4604da4e0a203ef4bb6e8fc16737f0cabbfde0ba991224751833cec0e7e5c321. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QT3EZ2436867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4ba3e1a262c34c7c833a9b597709aa98ced88b0cc4abe6f823b9daa934ffef8. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/QT3F42416320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3f8d0e3aa6d5b4d2b2ff7553ee24ee8fa4b07e705d694ddf75d085c600e20d8. 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/QT3F42435623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4604da4e0a203ef4bb6e8fc16737f0cabbfde0ba991224751833cec0e7e5c321. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-19T23:31:27Z), 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/QT3EZ2436867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc3de23f9f30772edfcdffbd55dce80e86a48e154f847e15a40f96c05fce2aa8. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/QT3F42435624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13fea9322617e3a6e03b8cde500233f7a85906816ae46fd931893520a2e4053e. 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/QT3F42435625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7c515d506aeedea25b55f5f56072a0b23e4c3031c3c04e9d2934ea09ee73d59. 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/QT3F42435626.
The Rope (feat. POLIÇA) - Geotheory Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2028021674a3451579cc6b7d40864e48361dcf18f326883bd311245fde47a9b7. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBEWA1908705.
And After That, We Didn't Talk - The Remixes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x166a40212e84af2ad1a9aeff336cb7b16c5afaf8dbd2cc0041b92d39ae580f53. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USRC11601188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x197a1b77fd44e8b28fcf8030715dabdf216404e55051935933c79eb25bb00f21. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/UK6821634159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x056330ad49c182549b7922445b456e1bb7420e5140750657f824363753af38c1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USGC61600542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05d37f00d87eab8fc88cfacaf6aa4023e39a547a91022bcfe3c8460227b8f510. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/UK6821653554.
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