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 0x38e0039b4cfb746c6d081913fa5e100075f156781a9aa3adf4cc1c53214b34a2. 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/4b5cfb51-3e59-41d2-8afb-8c33dbf64638.json and https://artists.proofprofile.net/proofs/artist/4b5cfb51-3e59-41d2-8afb-8c33dbf64638.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 0xebd73b9499aa5d6baed228d29c2606da4b9935f3e21c22d887812689c78cecc3. 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/TCABX1488269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1de916f5ef303a6a45e047af1265ecd1a531b923ee1d58807a46dd0ae0ea2e7b. 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/TCABX1488270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab0f3a7e70528967d16458d7cd083097adc93c23cc1f174f7417d66f57b4949. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/QMPKX1770074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6c9425bd97050417e5bbe2ded1d15d3f3dc3f115004b69eb19f7fdd6223f6c8. 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/QMPKX1770076.
Light It Up (Christmas) [feat. Frank Puppet]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1534f754f2a84fe1322d9e57201cd122ded38c998db69b41651c443737fd0f44. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/QZFZ32063091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ebb92ceb0f540d04295580eaa4b988fbb75df71630c23d9545166193cdd14b. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZDA72019948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85d4270435e2202f3ce314322c0ec7c283046d38e74b5ba7383758d3a41251f7. 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/QZK6Q2286768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03e613b1979bb2ca46dcef2dddab033ffd7374eadc399a863a633aa4eb94a6a5. 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/QZRP52270114.
How Married Are You Podcast Intro (Special Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ce3dcc45c7ff219192e3c2009a162580047c2029d9c4f33d86c64c4da72767a. 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/QZHNA2087774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x787c0cc9aa0896c6c739a34b70ddd5fc4868e530ff88f3647c5c2daf058f0e54. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/US25X1089507.
Greed Money Power (feat. Derek Minor & Beleaf)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee78cf4d266258cfd0f98625f864310a30550be9444b566bd60a41afcabe3fab. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZE5P1862031.
Powdered Toast Man (feat. Beleaf, Jurny Big & DJ Efechto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56bcb5de04f4c4476557a315e91e23313f54b2d31ceb980fa470732d321653c3. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/TCACH1577494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf44c03028f9db4b2baace8584708cceee90f435b7057733b94e8d8b755d559d1. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QM2PV1683587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b3e3125a666976dd4b76e4982fb86b68f2a8beb75ae7168ba17940a2bed7c5f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USACX0702744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5f66857d1e19ec27abf52c38276c5dc0a4007de019645180035b57ce33b7b50. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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/QZES61979071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e2600773f4664f9a4496699230ec08335c9e5bdfb7601e692595329dfba4ac9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TCADR1859901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43e62d471eb8042b83dfd50e3bf5d4d1f82390a710682036274955fa12d6e738. 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/QZWFX2428649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeec672fcb3aee43ef7fff3d11ba5cda7e9b9a78a9b85487cd74bac651c628d8e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TCACS1688817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76261e59218b0b73c167a90e27b21cef321b05de765ed81a281ecc940407e8cf. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QM4DW1659013.
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 0xd2dde65d407841dc31ca4efff41e95ec42300d08e354224079ccd81deb3c0cf1. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/GBHH81300066.