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 0x9fedd03cde8aabaf4f4326ca77905cae8834d23ec779cd176abb1a3f53a865d7. 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/ad628025-3b0a-4b50-b1ea-2454710c1f78.json and https://artists.proofprofile.net/proofs/artist/ad628025-3b0a-4b50-b1ea-2454710c1f78.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 0x57b2be7779c02e4a9fe7c8f29f4e6d7a5e08492800749b2a5e91367a5a55963b. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/TCJPS2275577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb080d2614d1defc47b566c63468cbf23573cf72dba6e53e6b673d0cc511be417. 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/TCJPT2252474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfc3d481f76090383492981ca8f3aca30a4ef7b9efa5fca0c382c17eb07bbd0e. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/JPTE02302960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9940625180f7186a546e83581a6a75ce04df22369549fa9609a13b775fe0019. 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/JPTE02302970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd167c767355867e5c4dfb6266925751fdcff3b38f80a8a193602594703ba0a7d. 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/JPTE02302980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbde3848f6a6c4afd0a47d1e1275cbe9516a472bacd82b8b1ee2e2ec4845a47b4. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/JPTE02302990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71eb8e66ab1904de1d352faaffcb420e6622c76c06d96b8473a7de55cad2ef93. 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/JPTE02303010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b689aac0ed5538f725cb4783ca240f8cb7308e00e2306e2c6dc27a9f56794a8. 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/JPTE02303020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeed37889e0e4143e509cc5d777fe7f209687a7af19c87545866c8c11255c15e. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/JPTE02303030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04e0c3aac6a9cf5de5b30d9c929bdcf4bddecb45886fe1bb01be42fa26b2ec8a. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/JPTE02303040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x898ef5b08b40bb76fc55edd3f259b32898eb7e092bc6aa2fe16f99406c9b2649. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T10:50:46Z), 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/JPTE02400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f2fbcd466118793409f90db4e28fbea5d2b2d8957a71ff76cc20b246603c967. 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/JPTE02400030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d2c7097069f08c1c309c7921fda815ffa9f52398cc37d3e24215caf8dc6ecf7. 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/JPTE02404820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafcf5f5e5ac58ce141abb6e04eec35d7233addd8ffd8df9b164e4ec78f650b66. 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/JPTE02404830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbab8f6666945bc0318423dfa1b382ea5b5b4b2b21d75be9e3ea1a7f4f879f2da. 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/JPTE02404850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1a28df899e0ae323cc13f7e7de86662155a2bf2f74515003721e01c46148576. 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/JPTE02400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfc5a16733b72a1de4b5374e3947f8d31bc8a2a675f54da49a226a77c0d66e37. 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/JPTE02404870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x881259f506c94b7e4da3a057d5f0e401e3379d5ecbe5dea72e7282ea97b9a4cc. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/TCJPF2575292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x881259f506c94b7e4da3a057d5f0e401e3379d5ecbe5dea72e7282ea97b9a4cc. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T11:03:59Z), 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/TCJPF2575292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d14bcbede7439acab76785cfbe874987d6a7c18e320ebb7ee160c54dea57b93. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/JPTE02502450.
もしも私がアイドルになれたら / ただただ怠惰
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50a303074c9587e70c8a51a3492554e12d515491f4e56598c592d732b01eb455. 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/JPTE02502460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdfdebb56b20a34a36ddc26b0d0f3012b96cff4f1cdbe5aa208d685b19428b6c. 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/JPTE02502470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x775a3677af49341803dfa2eda49b0c5b8183311498971afe1267d3d09533dc55. 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/JPTE02504280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d14bcbede7439acab76785cfbe874987d6a7c18e320ebb7ee160c54dea57b93. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T07:01:25Z), 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/JPTE02502450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac40257464a467d335812123b98d3529d02c84ffca72eef3ef8cbad4fec98957. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/JPTE02504300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe962f00f1a18595ef7fddabecb1c1bc4014b3d6d8c994a1675296d3708c7eb6a. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T02:10:30Z), 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/JPTE02504310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ed94d4d2366d38831bdb6eea984c24b1481f779118cd3cee4bac90771a351f2. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:19:27Z), 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/JPTE02504320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2afd9841634f696cc47b89373a057744a6f87ebbba83f461848e45bd82865b11. 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/JPTE02504330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55d5633ccf6c6ae4d25b470daae3fe1158d9fe79afe5dd61db66c0d88b03995a. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/JPTE02504340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50a303074c9587e70c8a51a3492554e12d515491f4e56598c592d732b01eb455. 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/JPTE02502460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cd4726f1dad6922a57363adfa029aaebe5d22effd209dc901d2a0d0e43a5e68. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T14:01:29Z), 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/JPTE02504350.