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 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 0x25d5c49344a4baf1312a3e679e56b4c1a60935b0b358d7011ed7c40337ed7258. 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/af2bde7d-4773-42d0-ac1b-d7ce81df6abb.json and https://artists.proofprofile.net/proofs/artist/af2bde7d-4773-42d0-ac1b-d7ce81df6abb.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 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 0x921efdf1be9be2739d8a2c2bf0cb1c17f944ced45e995c765f515c8727c35b0b. 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/GRCA10700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcac853e1a7e12402ebc4c857b0f6a7fdd593366dc2bf389f4b0107c10bd39a6d. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/GRCA10700012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f365e0e1f1a05e0c37396337251a03ebafb3d83c32969d7778d912cf1fdc170. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/GRTC10900301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1b69eef1f32dc9c7c9ea5b6073bf9e41f6fb1f0f6f7052b1409d7aeba7d63b7. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/GRTC10900307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f4853d25fabac8a228508996dd02a0e9ee126595276794562238d06129f3a4d. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/GRTC10900308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe03da43242aad7ce36d6e4296e116f86b0ec663a7239a6a7ab65e0f701b545. 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/GRTC11200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa59363619527f5582448577e0448de58327cb47a4356a089fe3de522fda96229. 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/GRTC11200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x044375d5a95d1e683fb4488b1b75911dbaecd75dee07f6957090023e1ccfdb26. Chain 2 (Bitcoin): anchored in block 959034 (2026-07-21T16:34:25Z), 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/GRTC11200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83e02eead6e02ad794e03d71b96aae23d525d92cc35260036f2d436facd7faf0. Chain 2 (Bitcoin): anchored in block 958590 (2026-07-18T17:28:56Z), 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/GRUM71602628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa67661bfda5712cddf1dd147b160b2f20db177129eba0b7f73a4ff127d52a7f2. 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/GRUM71602608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6752e70731aeae0d64d8840d4d8cef5f876b7f27e75551b894418d73dddbb47. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/GRUM71602625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47c7269bd634de36bef1c332981b4321a45404a16fffe558f24f4bfa54c7c0e3. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T02:14:33Z), 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/GRUM71602615.
O Minas Ehi Ennia - Den Zitao Polla - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5ef13e7d09e3af01dbe6ff9887e036b3345ca74fce3cad68d1487c5a0c099e1. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/GRUM71602621.
Mia Plousia Zoe Se Komma Instrumental (The Miser by Molière,National Theatre of Greece 2013-14)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74230ff82d1bfb79f85ffbb8b29cbdebe7581b72bc89706898e7cdb89cc83806. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/GRUM71600855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaff7a966958ede1b236977c3590e874d4475868e9e8afe56c2d8806d1172129. 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/GRUM71600856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c9ed414ca2f856887d8bb29672b01992b5327ca580691b146d6a85c1526edcf. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/GRUM71600858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71b8588a43e91f99fb6c59a58ce5c6e706f30e3effb7dc0f22df57358a855ebe. 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/GRUM71600860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd85525ffb260c83066e3c53fc790485223498eb7e83c3ef0635db3c9fc69b67. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/GRUM71600862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcb988b174d5b74d25a97dfa7cfcd9e74f27d7c1439af46ebce1748f7814b47f. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/GRUM71602605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe025de6825661bf7a094e1926d4f15dd4cb14d8e422f8e2afb5b250102c9d002. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/GRUM71602606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7553f194e68ce1f24ff959b438d8a4ebd9d13774b5c3353a39700e43b2ea0fbd. 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/GRUM71701031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ea35df2e16e90423f82c555ac0438aeb1009ab39c5c27445c5ef6475a539a5. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/GRUM72100391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a896a43aace229b4c6a0556d9cf25028c638e9f54d03550d894cf090512c13f. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/GRUM72100982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37dc6dc9ed823956d1e14c80dfcfc191fd5895dbb361086314d48aa01e73bfbc. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/GRUM72300817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fe34c7a0165a28a8641791394fed9980c9eac780eb7e4dd8958390e6be0efcd. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/GRUM72300819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x519dfa08de4c40c4dba1545070192f4ac4c8448a33696479a0b464c33ed679c2. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/GRUM72300820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbedfdf4d59fed6a7dac6a07bce025fc38e72cc8e3db8ac794e839a8619a44a48. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/GRUM72300822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x607c7588c345f0e27a8b4ca0baa7bd5cbbd516f9c3b856cd90bcec82769fc0b3. Chain 2 (Bitcoin): anchored in block 956775 (2026-07-05T10:41:06Z), 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/GRUM72300823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67d26c800277d047ecfde10b0407c4031dc259db2136d26db4ea0c7c38fc2a1e. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/GRUM72300825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b8372106014e0cb3a488a7128b194402ca887dfc43db5b6d607ef1457830a21. 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/GRUM72301211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x417f706ac28bbdb10952222f9cfcc515ec39260a6e7f615eaecd78a7c9e22259. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/GRUM72401184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e95cfa74043644456dab89d7dfd7399bd21924b2bcab4e7331e7685318ade7f. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/GRUM72500363.
Our Wildest Days (Original Motion Picture Soundtrack)
Brave New World - From "Our Wildest Days"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd4962b2ed4d316c1479e0a87053571facf08d05caf8474c92b2fd79d8f1e5ec. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/GRUM72500629.
Deep Is The Night - From "Our Wildest Days"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2870eec6764c587acb8ea0bdbd91b9cdf50cdd88fb04656351cea965d283a65. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/GRUM72500632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3317211649ed24a806e35a05c7b0e3ba5e8bee30389f36d385dc549bc75c0dd. 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/GRUM72500633.
The First Town - From "Our Wildest Days"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c90d79d1cdbade97a9829deb1afd32c7cc9f91e62386484bfe3af05da070722. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/GRUM72500634.
A Canary Called Glykeria - From "Our Wildest Days"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25abf31868f90336a22f776331b0ba358390a050dcafea99c167375cdbbca515. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/GRUM72500636.
A Phone Booth In Nowhere - From "Our Wildest Days"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7f8ce3c7d4ea10a79cd2a9eaff3396bd5b31874d9eeef5b854a523d1565827a. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/GRUM72500637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57b07bab31d86e85f479b46c65cd2aa9dcf5d5d6594a73bda99efd83e39c6421. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/GRUM72500638.