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 0xc3727c776844198999fa3cf778fd23b835ffb0e17af5907813b654fa1c78b8ba. 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/9b945152-5201-4cbf-808d-32e74fd62bea.json and https://artists.proofprofile.net/proofs/artist/9b945152-5201-4cbf-808d-32e74fd62bea.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Talat | Episode 1 | The First Day of Filming!
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 0x1d7668114c1376dea311982c44b5239d694297218e83ea9b76d4d6ccc24e5d41. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZNWV2447466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e7e63842b2d14ebcad15a5e8003885db3db7687288a4b0c9004400bf448ae86. 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/QZNWV2450743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5b7271352651a4cad90f504c19d00257b9b66e41ade1872a46e6de56820e2a4. 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/QZNWX2434381.
Heading to the Sea | Episode 1 | Michael's Descent
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9199d71353a70305195b012c10cc61b922ec5034d375829d439c6d94a91e4326. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZTB72437488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93999bdb541de902d47b0cfe08b2bdce829fa6524ca268731f55cbf2a4e7a285. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/QZWFF2461625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde380ec61688f58eb6c4c798d0ea32bc631c8b5021e9753a48045fdc357d96c8. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:49:02Z), 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/QZWFK2447626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c7640cec39eda0c6f98a0e2ab5103532717f2fdbef3be1bb60257d894488f94. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QZRP52457963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc235bbed6da8fa189520940a2d2c0bb0e90ddf2cc546cbfbf78420b632f06a78. 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/QZWFV2446550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07006aec784bb081480e5b9306991dcd35ebe592d3e49ed33b721a01f68847c4. 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/QZWFK2458237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f90cf539857070782599ad64c23f650837cf626aeac0087344087ffbd0c0cde. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/QZWFK2458238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdec8f0b798f63df6e0cf7d5e2590d778ad69296717dcb4a1ec9edfa0625f59a5. 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/QZWFK2458241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac9dbe6c7a479b53731695ccbf462b8b997a54e54598c41ee9f2edda00033fcb. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZNWY2437728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb807c5c0ce72a486c28ef887cc9043c9549f52fb1f47b0b932a5d03912c9aaea. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZWFK2458236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac9dbe6c7a479b53731695ccbf462b8b997a54e54598c41ee9f2edda00033fcb. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZNWY2437728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1253fe0481b7ecabf5779ad1b70039f2745d204bd25e3742aa992be2b37f44bd. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZWFK2470863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa80f95b395bfc276423e7185df94370b277d01f8a8dd0fec68d62449d0a9f082. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:51:53Z), 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/QZWFK2470864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x852416afdad335743dd61d25fa8481292540e5b0250586ec82fb2164a8049983. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QZWFK2469434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4927e674226c52d2e8b62e8da010c99c287651675763f840485fd16ebc9031c3. 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/QZWFK2469436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb3b8c6b34216ebfad782efbbc8e9f0211e74323da994fc81a0d55c34c707c3f. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/QZZ7S2415599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf289ecbf043565334e51ff4f01b0aa7734aebf6ae3e33abfe19abc005de1bb0c. 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/QZZ7S2415597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd4470498b959bcc1ac3567b521f2668756eba4b13f5348b8ac9c8ac3afd71fd. Chain 2 (Bitcoin): anchored in block 956430 (2026-07-03T02:22:42Z), 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/QZZ7S2415600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0174aa2c9ec495ebdfef956c9da69478b6e615b7698d39fb2dd94abd630757b5. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/QZZ7S2415606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaade81870364f29b223b8491177cb9255d38d06749be3903cb9b524fbb0bf8b. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZZ7S2415611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdccb795d71d187053577bfc9c337dd4b0a061b31ee9a468d07c5b78ed2274462. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/QZZ7S2415613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x647db93a176d47489439fba5ce2dc85f72e9ba3c0884e0a6bcd7b0336e3bb69a. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QT3EX2483510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb745045362876a6b0a2da148dbfd36a789df355d932771150d8e84a5546e4621. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZFZ32545361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf6b1d28e22562db6ffa4b072d2ef8b7111260d11d3df801bf4d714d8007b1e8. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZN882542545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb745045362876a6b0a2da148dbfd36a789df355d932771150d8e84a5546e4621. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZFZ32545361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf61ebd2a7867f5c074edebffe09cedcee9186c4967831975a51a257324adc9bd. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/QZN882545803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d922e63ce4c1ddc6c55ca76ac6c66b9b0a750dc3152c748031cbea934771961. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZN882545806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbba114f12fbb1fb3891ed09858d76f4e58168ecaa41694a12877e01284fd76fa. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZN882545809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43290b2d1646c4654c1e3bea8d858736eea817ac9ea3ad8733e7d64b104143fb. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T15:50:28Z), 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/QZN882545810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7036e7ab8b10db8f0ff70ad8d803fc46dd356f2c51575dd9b8bc72ed6208550. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZN882545813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfda22df686fdcd14884f9cbfde3ece1938a9f368ed22608d24a07f4f9d549e68. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZWDW2508707.