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 0xc0c6653cca72d4fa200af3f5c89696897d28454364e2c4d65da70a30528788ff. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/117fd1f5-1d76-4d8f-8669-14a632919bfe.json and https://artists.proofprofile.net/proofs/artist/117fd1f5-1d76-4d8f-8669-14a632919bfe.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 0x3ddc6fb4a73e99d2a5d65f022e0df5d09c8010bcac897f1a114096abebb7d3e2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SE5Q52304410.
Epidemic Presents: Crates (Blanka Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a2af0f9cc40223a16016d7b50c0351478d14281237715a760958ae9112dcf2a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/SE5Q51812348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb533b3edd2b250caa3b5649340cff250392d4ee78e7a385230f704a6d8ad8934. 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/SE5Q51821784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2c76e4b42027e833f09e80649f658efe9231f8064095373e687b0ab84d09353. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/SE5Q51816313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x737dc1a3bbc96762fb57f9de9c83e95bfb9ddcf010ab36ca721c1131a993526c. 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/SE5Q51814530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0a1df6eed3678b29acb99725805394e8f1597e6b1b78a12bbeeb9730ea1d6f7. 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/SE5Q51828509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x134f1ecf1039278f62503e75ebac6fbdbdca9b2da52a673f7ea52e0e1b20924c. 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/SE5Q51828689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75d84514a6498724f81539ea92593f37c0a5d31a8e3869575fc2fb915a295fd9. 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/SE5Q51828629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x344e2ef3e356ba8b3d8278c3601c853664a6c0792254a1aece89b0a868576f64. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SE5Q51828787.
Epidemic Presents: Crates (Vega Edition)
Can't Hold It in Anymore - Instrumental Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x303d014a145c9e91d4c4a48a6f9bc6e3b13f3bc7a6ab20e42c3835267d5c9bb5. 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/SE5Q51900181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe15ff977bc044e49953ce9b4a624d5b832144f7ef58b76f8741c14e6d99329e8. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/SE5Q51900745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdf4a6787db9ea61fa820f8f7b6b885f3f54316cf9f73e1d1384e1e3baa468ea. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SE5Q51900287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81e25f75183fc6aef5d7f316394aef05ffbcd5e19c50d19d65a22b7bea833304. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SE5Q51903095.
Better Kind of Bitter - Instrumental Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6c77babcc55b67e69dd7ed71bc27ed0794091070e279873d9e18c79c62061c6. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SE5Q51902948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f1374fb7b56a0c10213c6fb618e440c28ed4aa708416427a56f84b50eacdfd9. 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/SE5Q51828579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41c0a2912b5197fe3643b4872b66de1becceb5360835c8daa22eb3c2816711ea. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/SE5Q51901771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe113654d1e74de7347893199de9b763bf01d93a1e29ef8e55317f7cd3eba234d. 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/SE5Q51900624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52ffe92d69ddb9f0e734ed9e2ab49085903bcb24916ead1e39b67f3aa880b192. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SE5Q51828533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa96471cddd5401852caa8e0eec835271cec2fb2d8244ebed4b63290c48f3dcf4. 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/SE5Q51826601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eefc71593ad4ad9b322d173ebf7b7bc8581510879f397fa3716d7c693f2fe78. 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/SE5Q51807374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x176036c6e8ec910d7fa42552b1ae0d5c1b70ebc04c058aaa45b3e41134104e24. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/SE5Q51900109.
Idiot (SLCT Remix) - Instrumental Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0e623c2a76eca878c72931adba591f4ce1bff3971dda847ea5e6c6158aeedf0. 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/SE5Q51900065.