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 0x34b2a1e77023992fd3a7d4b71573037d539d29fd9cefa2f3a56c93c68c0b6d9f. 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/ab088dce-7a45-4bc4-b0cf-8ee68c81863e.json and https://artists.proofprofile.net/proofs/artist/ab088dce-7a45-4bc4-b0cf-8ee68c81863e.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 0x36a0a1d63a7d01db3c380742617fa6e122798d240054dd364078f15d70042efe. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/CH3132100439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd22c6706dbad1c9d4867d1dc7f2031e198122f386a317ede583ea4ebc949ac72. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/CH3132300045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90223225edc79f39384cd2223afe72b503f70947acd0b7b91a8b3c562839f478. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/CH3132300046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b26011d96092bdfb3c525fc43a725eba81bfbc1b86fafca9d3f1ab5aafdcb64. 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/GBHDY2311930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b2265bd1e0a83bc192dcb77c3994ae7960145b28ca548dec669b771e1411bb0. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/US83Z2304675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0185212ed0986428d1af30bae3b579301dcdc078663610c69be168fe8e6380d. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/AU3FH2300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13e47cdc53c99b1145daa0d7991669ac83043d229e1b02647aeb6faeea61ef0b. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:51:04Z), 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/GBHDY2311956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdccb4cefc2bce138ed304236c1f1528ec0a904d554077a870c5c4a0780144e9d. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/GBKQU2426416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d00e058a6659bf943fc61ba29e8b493fee4bb2d7bcc7d9e4bb4adcca1003a60. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/AU3FH2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x336e940038ee7e8549fc543c5fbb565c9a813bda4d0988e7ff3da8f3b7c08a1b. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/DEQ692400102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5df426179b589e369ea48ca33db9155026032424ff1d85590b04296d2724d6bb. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/AU3FH2400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eee4cf0c35f552a3607e663ef07c1c607eee2d8ac663de26f2c4e64e310cffd. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/DEQ692400145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb7708288f13dc3eab26eae0625c455e9e27151fd60d8b7a921b5e09ec712fd2. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:44:42Z), 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/AU3FH2400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe859f5d55d8941d2fb2d3499c0701bea9e1add16b7ce9c8c75a70b324b620670. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/AU3FH2400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b0769fc9db744a0e4cee8d3c130cd6e3d23462dbd18cd0f33ddb5b9a7e619fa. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/US83Z2503368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2be09eed869e4b6b204f912ff1e4a7aebd39228a293150551f98b67ba5d12461. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T19:50:27Z), 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/US83Z2503375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd69ee80da7b61c6cbcb43715ed33a3edb343a0fb381884aac618314465ccd64c. 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/AU3FH2500015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b17a4fe93e10b203c659ca0be63ad1ea68d13229ea6093aa23daee966c89325. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/AU3FH2500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58e515ed5a56d14394a0289aeadf5fa70c9cf0e9a453bc652b29e61ce1cc451b. 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/AU3FH2500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef6459c6aca4d97fdda47af32637c47cb4d2b9914388ce034b6d8b1e294f8d1c. Chain 2 (Bitcoin): anchored in block 958882 (2026-07-20T15:32:26Z), 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/AU3FH2500007.
Siona IV Anniversary (Mykonos, Greece) [DJ Mix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3cd4eb639d23f5af7dccc74f8562fb6343abfe4fcae6f662c38d32fc199316e. 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/US83Z2324915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0dfefdda37b074b473c84604c92eac4534189e0696fd2d77a15196509631797. 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/BXBK62400076.
FSOE 847 - Future Sound Of Egypt Episode 847
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa60dd2eaf25d1e4057754d9dabd28204e5197c978d0abfc0b9ec5dc7ab96a901. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/UKRMQ2400253.
FSOE 849 - Future Sound Of Egypt Episode 849
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2030b495e6b254ae987bf28e75fab2bda11e9b4bb416b9fd032338a60eac2d61. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/UKRMQ2400306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7dec1d8bcf695bbcd470beebc59fc855923d6e44de92a839028843962d1d90f. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/UKRMQ2400254.
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
FSOE 865 - Future Sound Of Egypt Episode 865
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51fc97ad444bd70b66a389d49876e052ee19611b2eb128dad0e2cb859e928620. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/UKRMQ2400843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab9638999a7e322a44f546e5bd374e01cb81bf4ed91e9504165822cae707e9cb. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/UKRMQ2400844.