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 0xa69e19c7d695e2e1b1ca7614a0b877e5e61a4ddd822b710e789014e70ac9e462. Chain 2 (Bitcoin): anchored in block 953746 (2026-06-15T05:25:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a34f1e0b-47d1-4559-bd90-615871726964.json and https://artists.proofprofile.net/proofs/artist/a34f1e0b-47d1-4559-bd90-615871726964.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 0xf2fb940234d4a13374b744acafb86f3e7ee500b78170221b033fe5b343132e68. 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/TCAGR2256446.
The Jude Injunction (Didactic Music Vol. 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c2f9a269befdd22905d4eccd2e60db6fc5cab20b690c3aefd57551bbdb6dcaf. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/TCAEJ1930100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc21ffc822d4813b678886d95c78ffe85d6098b582d994882652cef18567e93e. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T15:27:59Z), 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/TCAHN2386375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe87b13e22db46b3ee5dbe964bcc3c2ed04b852dcf8e54817d0916fbc83749a84. 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/CACWV2581808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8f2baa0ed9287711bd2fcfadce0b1f860daa3625fd7e49186541ecbf4024210. 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/CAENV2513454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd74da6d8413da66bd489060f91539003953fb482ce9a0a2b0ff374fa53633745. 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/CAENV2513455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54dac1f940a3e09f5982ca89ef773ae4fef6ddd2210ffe34f7e0b8bfd0a51072. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T14:04:48Z), 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/CAENV2564448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16b3225d18ad7634707cdb5443ace6d7db871629ad6127906d4d9167cd70a4b2. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/CAENV2564450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x963db7a5b96e3261a9304d9a614821f5a10b3e758877b5e584e6d44c53d20d34. 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/CAENV2564451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cc35e45152a278e16333f5aa14e767667072fff3746957545d19c0c0c799b30. 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/CAENV2564452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b9e1541127a00c66bbf70ae2334b9c43caf605d013540e7426cad83696d19e0. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/CAENV2564453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb62a11a4531b2fdf0cfb95e27cd81a6e64a198f5291fbb4e8843e91e5970742a. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:32:31Z), 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/CAENV2555886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e849d97847e05e82c632bb8f223033b0659935fc10ed3713ed2616ed571268f. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/TCAJS2535030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb07227a68c5be3884940e6fdc8d16890b85b942a85ac9f0a0ed1e346b377f16b. 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/TCAJS2535161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca14477882289fe4d814f51313f461f4b7e7f99f89ee0cb918c8e6006f0e5cc. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/TCAJT2529399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcde5a12ee08479f4777750329a45dd32139fa67feb69418a859e6c497d08d7ae. 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/TCAJV2505195.