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 0x4b1d9c290b85ab24e9bc22fa738f942180c908b22dc7c257055062eaa61c4283. Chain 2 (Bitcoin): anchored in block 953630 (2026-06-14T12:06:27Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2f6861ed-e405-4bc8-bfb6-456100d585ae.json and https://artists.proofprofile.net/proofs/artist/2f6861ed-e405-4bc8-bfb6-456100d585ae.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 0x6a81a2a9ab9bdcf64e4df50679328e50709d44dfce7d8edf481b4f26ad1926a8. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:58:02Z), 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/KRNAR2352405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x884fa198c927f314b720cfcba243a5f75cd9194d6ebc6eae684b72e32eae8981. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/KRNAR2352407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2a8368abc59cbdbd47079710dd118a323964cd78c278aa93a8d1024b6efbe6c. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:21:53Z), 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/KRNAR2352408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eaa3e426f14e12f3e79694552e086c8f88148173320d8cd38368768c1007a20. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:48:59Z), 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/KRNAR2352409.
Merry-Go-Round of Life (From “Howl’s Moving Castle”)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x440a28b6e6fa215348a1e5566f18d7bd0c5a86c908164b8a5f1f58dad036c1b6. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/KRNAR2352410.
The Marsh House (From “When Marnie Was There”)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa336e7cdd63bd4bea3a5003d93fdb6b52123f81cdee272378028612dda83b584. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/KRNAR2352411.
The Legend of Ashitaka (From “Princess Mononoke”)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44fe078904efb5343f4fe79d5b5ae3c640cfe83860d48786b5a7135b34cd0986. 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/KRNAR2352412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x876819752cf5f652d170e29bd579ff3ee0fee97ff59e755d14db94d0ffced4c4. 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/KRNAR2352414.
The Path of the Wind (From “My Neighbor Totoro”)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a01e171971c369877805871c8477d32a43fefddd39018b4ca478e60afa98c83. 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/KRNAR2352415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bb20a1effad9e48bd52d80164cf3d21b37f79400e46c1f724a5fe00f15b2eeb. 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/KRNAR2352416.
The Promise of the World (From “Howl’s Moving Castle”)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa40ec46b7abeffc7521a8307e77083ac95b63930425dfb1b93584298472212a7. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/KRNAR2352417.
Embraced In Softness (From “Kiki’s Delivery Service”)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ebbf12a13b8e6ea2dd30e2a3e51446400a620bef1e08adf5b899718b395549a. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:04:52Z), 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/KRNAR2352418.
If I Could Be the Sea (From “The Ocean Waves”)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa41c545ce8450dd9a3209a2e3b4f48dcfa0ca6c5d5be73ad6563799f98af17f. 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/KRNAR2352419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8218eba452b47de4dbb45c4173345e4d1ed2f2342cd313a7c3e15c2ceec5d9f5. 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/KRMIM2476918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x754b7c7c2ed47e535101de7783f316b1169108a73e9a29b5e878939f183eccc8. 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/KRMIM2476920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32bafa7ddf941bcd08e70bddc1fdba08e877daa5eeabf0938f5fa4ecd8e6bad5. 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/KRMIM2476922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0326bc8602b01fcab22dd117022e7ce96a9f8a219150cd5f68022a2ed962eff4. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:54:17Z), 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/KRMIM2476923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33cb8a32df4980df7b6c32450a712182b67352b35bf3759b82213f11198b62e1. 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/KRMIM2476924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2dba4e45d6869d6a5a38461cfbba2b190e760278a492df61bebec4987216be5. 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/KRMIM2476925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa03924a1d8ba515476da63def7a307501548b0b7be8b7316fd2f004cde404611. 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/KRMIM2476926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x840828a9f6c9fc0c1a496bf6c83e4ffeb60045fa374a5038f1e0af773633b8ca. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/KRMIM2533375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d467c5d66bd2f991860defdd0e83d40f0818c5a07fbebdcaf57437164c8f610. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:32:50Z), 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/KRMIM2533376.