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 0xb3bb702deab7ba7cb29269dca82bee7bcb4b266ed847fcb87959af2d8ed359d8. 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/fad55aff-3d60-41f7-9e7e-d6bed9059c92.json and https://artists.proofprofile.net/proofs/artist/fad55aff-3d60-41f7-9e7e-d6bed9059c92.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
No Beginning, No End (OurVinyl Sessions)
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 0x224ac22f0c2d129e7c9edbca474e2a0a3fe32363278e4e3144d8b893b37784e0. 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/TCADX1848950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92c268e084d51174e28bab4749ff2f4ba1f292b71799bc3ea00f5db70758ea2f. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T03:52:09Z), 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/TCAEA1983168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d2af4c2ea7b5126caec8d2ce97960b77749ed9470d704072a75586d73aa56d3. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:14:49Z), 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/TCAEF1988646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b90769679f45189d9d7e16eb3a57cc7d6993afff6282e8a2ccea278c7f21eab. 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/US7VG2030525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x934617787eb2db451a95aaef8bfea3f907b233a7c95fa64a14b1799360a49989. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T06:37:59Z), 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/US7VG2030526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4514e03d1959875beb598754ca21dac052f7c208a30f5ccc68c3c958eaee62f. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/TCAEQ2003148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x891e47b751efedaedbf28b7bc7d67ac231937e9d846fbe087019a591fced2d6f. 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/TCAFQ2134129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cc2b3de0a6577145e4529054a413e2c5e68a8b712e0473a76f43383887fc8f0. 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/TCAFS2193122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf49485912dd64e557a01fb3341d3cdc8c0c2c0fb45fa8d9cc72897433176ab51. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:41:17Z), 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/TCAFR2174723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x442a2b382b32ed5eebb2d26fa1d0bac7b08d0a873f8fa8be63d142e440d6e233. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/TCAFS2193129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f73fcb629bab883aa434a83b54444c703c1fe5381ba4349d22bac670b20a6c0. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/QM24S2305309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eaf3060602032d2813f99fed158ff9a64e68b2ed1f422f681cc1f0e77c255ff. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:05:56Z), 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/QM24S2305308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aa4cfad58f7cb6e0e8e1c1b8ee26116c0cf3d0c727626718109ad0464b9de60. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:33:14Z), 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/QM24S2400980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x790003b246d057abff256b5f634180a543f42705cca16e5f2404630e66427a2e. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QM24S2400979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe85b6172782f439c27b5188828c1408b1aab2cc8a15dde9e72ec455ca8bd71f3. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QM24S2405573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4392bb392ea9d0afcf9da21881b213275d6982e65c1d9e261dc51d75ce9ca435. 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/FXQ892300060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x609d7bd0bfc6cc714ea3a58d2d37c57b6d61b75df36e3770f54c2cff61f5ce19. 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/QZDA62232501.
Fishing For Accidents (Extended with Instrumentals)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd4d13b0d91c12546aca7b2767bf8dd8f5a2d756f5e2dde6fd70b0c7fe0ae9ab. 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/FR2DK2200090.