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 0x65ae20ba90c8696ff0679403420d1efa5b789688fe562a9b09b1384198f51632. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9ad6f45f-26f3-42a4-814a-e3736aea519d.json and https://artists.proofprofile.net/proofs/artist/9ad6f45f-26f3-42a4-814a-e3736aea519d.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 0x4c44543c861d33df600d353f395d1e17c1af5a0acc9ea9b3da9c4863bc4dc7bd. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T13:56:32Z), 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/QZMEN2361086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b46364c53661a7b873091b1453e1b7ae119eac35f17d751cc1554733828f68c. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZMEN2361088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2264f6ff2d7eb03592ad5be0e1308a5536019356aed3d8f4c41306ecec698190. Chain 2 (Bitcoin): anchored in block 957569 (2026-07-11T12:44:25Z), 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/QZFZ22327603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6ee7e16ca5f0bbfc8092fd9cc7524fa9a2e88112258f45214e133be55d3f959. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/QZDA82304627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc51ff41142ba01f63dfbd3f59ea778a9f01e4b46e6291cda57fa1c7eb6cf895. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZES72397166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e5010486919df934afce3b61a7aec2818a9673f0ece33b8f487a98eb7a6fb9f. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/QZHNA2331164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf519e8c5b537e3d9215787b0e23495e8cfcb80cf7346dd50280749668521870c. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T15:31:46Z), 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/FR9W12338980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf16ec8a365e93a083a5704b6c366799e26091ee88b9802647a8f73a32635e1e1. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/FR9W12338981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60b213fb61da51b39c2c62422e678fd9dc167afce2bd937f1128cff74fd81318. 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/FR9W12338982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeada55db050515f824347ebedd0637c8a008d82f667ee708248679157880b953. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:45:58Z), 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/FR9W12338984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7543fdab619132db758b5f3157110306e76ea838cd302280f4e2d099145ca450. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZPLR2345035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9169bf0df57e374636f74848ebc9c26359d8ff0e930e2162425f2ae338481d50. 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/FR9W12338985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f93b4f0504f080bb127552d6223d5a56815a266dfabb693adbf7de8181ecec8. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/FR9W12338986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3e247c388c4c52bb9214da3b92dc94ef05edaceddf5b8cd1c5a30a5ccfc0b19. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZTBC2325364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef267877ea401821f6889ae62490271a61a5789173cce6f557af9fd01b8c09c5. 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/QZWFG2329034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54be87ba33e813fd383b1e6d47f4bd1a5c08040adb2b9c97018a33d595770cd5. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/QZHN62463247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2beb2eee5da590583d8bdc43b275e44a1358e4fb6743e8397cac96f4484a956. 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/QZK6K2484480.
LA VIE D'UN ARTISTE QUI N'A PAS ENCORE RÉUSSI
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x933988a9fcf58c8cf66a1e01e6e4efc8131fa1f07a5355c739652885530bfb52. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZTAZ2452468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e0cffcb8e59d38eaa86059a0783dcb6a713df04f996f43d2589bc1781779384. 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/QZTBD2448956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a69f30cf62e2750d17fc38d38fad6760764862d56bb62f69687b6726403d0a0. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZWFH2437934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30566285339b1f28dcf4ddae670a85b59e1fe635019556a55f2e85ebee69f323. 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/QZWFH2437935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5243e4f149b5891b893e7c8872957dca1f012b6c7856be5d2bf565d9462be320. 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/QZWFH2437936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb12b55a4f18a50d1958f763f93e26a06d346c3e0c216eaf8c58454d6c3f23740. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:27:26Z), 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/QZWFH2437937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60a3c69ea3dd51cdac44702880e40d8f7d49b1c4ab38116657c1aa7658aab22e. 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/QZZ7K2406535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb7f37953a037e20c753a01089bb739cd5035ac8f4bbcd634df996233b385cb8. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:27:18Z), 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/QZZ7K2406536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95c8c2f5d3e6226632dff0854b6c023c702d2543c1f267b5d02067f21401a3de. 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/QZZ7K2406537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19b85288e3d7881a66148d38902aafaaeb9f7b671e35106f6425a630f0585866. 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/QZZ7K2406538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62f048a0a632730ffcb60509344c825e95ca56178106da63798fd8ef4de458ef. 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/QZZ7K2406539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe13a31b7726cd0efa1ba949c59518cbc490fd63b07d0620fde0cb4bc7a85e46. Chain 2 (Bitcoin): anchored in block 958670 (2026-07-19T05:26:23Z), 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/QZZ7K2406540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a745bf8e31cb93781426ae9797c3b56d1a3885a30e9c1dde10ad136451a3843. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/QZZ7K2406541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda393dbe113fd1a5f1e4693fd81041507b1ecc87c724924e449508e6dd0f2f04. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QZZ7K2406542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb5351c61879eb66faf78b20e59c59ffe806a935b1b13477071486123aac55f5. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QZES92532598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7a039119781bc4316d7be5fc395aab962ae910aac9ef032eea7b8d2ffd68c2d. 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/QZHN42534490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55e70c565c0544fbd944cd06bb47d78bc28aae434250761f4b0dab477913316b. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/QZHN42534489.