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 0xba05b53741299a8a05be4f76ae0ae5b740221b12108913adc3a88f64b593dc4d. 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/d00d9e5b-7bcf-4915-ae5c-3f7f4dca7400.json and https://artists.proofprofile.net/proofs/artist/d00d9e5b-7bcf-4915-ae5c-3f7f4dca7400.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 0xf078d61f83ef3faba06c1612d97cb1931b71c2ada300327866dd7f9a475e4fc5. 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/JPJ901322700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad622c9fc6a84bf0c41cf30f4ce9b9ce668e0addfa1e0768ee853f0ded2a87ec. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/JPJ901322710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb39b7bd083171196fd46c3b9379c3e1a4f41c3dfda85c77f2a03bf46697bf26c. 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/JPJ901322720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c4010b5050908a9d0be034fb50d306d553a6f865434f97880eed298c3c66036. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T16:07:47Z), 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/JPJ901322730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7b30543c9d2dc9754ffabb0b6be5c47dd6fd0a807d448ce1086b5db4deac541. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:52:16Z), 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/JPJ901322750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bf10ab8fcd9790967cfaf798cf1aaaba1688c6209acadb30e80121870dac2b3. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/JPJ901612410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59fbd223ee834e5d025f88c0e403f37027b52d725df1acebe13cc703639d6995. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:40:35Z), 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/JPJ901612430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bcd33c50750ae870b4fe6052fe01946005b0eb9774aa2e2a7e0e5318ef159f0. 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/JPJ901612440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe77c1bb6e3eba07caf5efb8aff2b5b2769deabdeedc36a8c04ed796cb826c00b. 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/JPJ901612450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bab0c066fa10342abab7ff70ebf28e74e885afbc3ce3a1a3552c9300c25a356. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:34:57Z), 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/JPA961780027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9d78ad071637f1ba99dfa60356c300da830e78be513c02f289a0b5d1b1da2b2. 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/JPA961880101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1156f1c18e41730c3b0a868bb42bd04d5da4ad6495f94003b0e3cd173871208d. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T18:59:29Z), 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/JPA961880103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dae4549fa4fc078f816038281ae5197fa3b19bb332e270ff2804f3b61bd5ebb. 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/JPA961780025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfef28f8884700aae4d6cdef27243640b04e4db7f84be1627319cb68978d3942. Chain 2 (Bitcoin): anchored in block 958351 (2026-07-17T02:38:05Z), 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/JPA961880109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10e04fd3a28c9b82bb2ad196fb567d5763ac9eab8b464c0b83576946a0ed4706. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/JPA962000099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x411e57a11c90fdefd464fe84a541cacb99bb54f61e8ad8b098d4be8ce261eca5. 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/JPA962000100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x099aea23eb649d40379f48fb25c48915f1d270b07ff7670a07e88e18880fc926. 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/JPA962000102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb5a3767960d14cd00b219430db239bcb0b51ad056f5edb8d03fe8c87e4cc55f. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/JPA962000103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x248f962e02137d06cf1f54830d33fd300ac7c9724fcd8a3a754f757f5172a64b. 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/JPA962000104.
クロックワークス・パインアップル
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe39b747df86377cd1183b002ca93a75a9721a8b723725d99a879f56aa498530b. 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/JPA962100058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdca05c1deeefe96e8c753cbb56479a9df349070debf95ce191f4e4a6a940fca7. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/JPA962080100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2083e38ae5635c73ed16b9af0d85351f676b089c514b96ab4bed71a55d097606. 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/JPA962100059.
墜落、若しくはラッキーストライク
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f7d7da44c4700e4e91afb0b9562939d9e293d78bfe9711186abfb7b63b635de. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:04:14Z), 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/JPA962100060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ec3c8c79a0e7bc0e2fc9ee3a343d93740a40ce15f74b7b1869be8aa8759d24e. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/JPA962100061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef69374f31e368ad29f74014a54b846471b867f3d16e1a34308e3bc7931432fe. 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/JPA962100062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49fabe5ff95eacf2a6f6bf9c5d29fc07c108e3232ca0ca0edf6be3ecce8faf25. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T02:08:01Z), 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/JPA962100064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54aff9e862fe5631d8da770954af1e7d388e6142621554f36b7b799a4371454b. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:26:05Z), 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/JPA962100065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1bf3413273e68c701309c32cf6a2069bc08113cad690f08c4abb696b36bd68b. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/JPA962200070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87cdb6f1d1129fb4a51286c3e421eb73bf8b50a43c802f577d0edfd0d3102430. 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/JPA962200164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3698eb70acbceb9b4dedc766e07a73dfec779f8a066e49d97aee8b2af0cdf651. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/JPA962400041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3f776286a7cf3c5e5a5363a0eff85b270eefb355ed3737c731c1f3a79a17817. 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/JPA962400042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfafaa16b2792d40757af6a31b93489492ea2a9e835602cf8da7d9a5fe8dc5b98. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/JPA962200081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x883dfad2df98e3b1b9ddad4db0805d64cc9e57d2e57e6119472afdabb5c3fb2d. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/JPA962500059.
墜落、若しくはラッキーストライク(20th ver.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c06d32a77958430f557b1b103ae550418d9c622f65baac0813e609d0e971567. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/JPA962500063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1bf3413273e68c701309c32cf6a2069bc08113cad690f08c4abb696b36bd68b. 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/JPA962200070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x140339226e0f9299c0b9d542947a5b76ec08f4225402424dd7e5d4bdb78fe3a7. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T22:38:39Z), 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/JPA962500117.