thumb|300px|Trident of Poseidon A trident () is a three-pronged spear. It is used for spear fishing and historically as a polearm. As compared to an ordinary spear, the three tines increase the chanc
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 0x6da9c6c70b3ff3716f3865be5484909a60049754f9cf3606eb1a29a0c0a38d54. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b5d87f2d-72ba-4d20-b751-2dc02ea0a4fd.json and https://artists.proofprofile.net/proofs/artist/b5d87f2d-72ba-4d20-b751-2dc02ea0a4fd.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 0x59ad5c5df3c6d3eeb13120755de30a8c7d38779ff65ff51393c7854093799528. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/TCJPM2067650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa804a94d1b74e16982759ffa73a0e04f5e0a8861256affc1c7b7ef1acfc4eaa3. 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/TCJPN2033779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b69ea115b324cb4551fce7f35f43380ff4b0f09f44f431f76dd073efe625a09. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/TCJPO2118440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7c445d8abfa201d38ad7be84453c9826a88e4a3a6d9dc49cf1affcf953be034. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCJPN2033780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba74acba3e3c5c39ab5827cd30e42f6ce6b41cfbb3293393eb3a9c4b6e4b6ec7. 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/TCJPO2122373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ad96a8abb6765f05738c08c5bc7dd7fe6ad7f429c403a9634a74422b09a2552. 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/TCJPN2000965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x565904c2f90bdddc6699cc956b638d02329a2acb3acdb3f2fb8d395dbdaee2c6. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/TCJPM2067654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x130f179491b4ecab3d5dae3e6c7ffb3007fb765e4fc9f4e055152fedb0ce8cb3. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:41:28Z), 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/TCJPP2150587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7a1574a35a44bb812d2e313ce6c7942b44c142ded25cb6a20c494e8c62b9f64. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/TCJPP2150588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabd93324e88de6d8eae5b8638af52e5097b1fec4720a54d429f5195cf724cd22. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/TCJPP2150596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8094038fecf3e26982388baf6b7a0c9c9eb1d9eb69248d692ef196f8599e7fb. 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/TCJPP2150600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd422a1514093c6ea815dbe1bae95b3915e287c9a00d16986d3cf0685dd68555. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/TCJPP2150601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x737ff6691cef80d9b3719ac742ae168af497f818c074dd3e24921b55ee0cb8ef. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/TCJPQ2292482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x042f60153f25412c6fe0276c597830f1a14ade6afffccf43827953662be1abaf. 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/TCJPQ2292484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21e8ef93e765ee52876f1eab6d75184d7c2adb95d4fa20f829512d0357e8a585. 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/TCJPQ2292487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37d395af0e600f5fe1a74ffbe05ae9ad71ee300b7ef7901092e626a65ae51e1b. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/TCJPQ2292555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c845fa777cbc0c170bda751b39bd6cdf1d913e1a6ac40ddf56d30b7309bf2ab. 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/TCJPQ2292562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0a10467696d9f4642f91240ae31c7346947d95a56a8f436c350bf6d8a1e5d27. 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/TCJPQ2292573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x466c3c1c396a941a695289b7ab508c2c3e24b2d5de7cfe051a5ac17f692a1d4b. 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/JP92L2201980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2285771654319af51235ebdf3d76e50bcbbca89f4d40493b1e9422710dd0ff32. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/JP92L2201990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x851b148ce688e6a3651b06ed6cc464db9a0749fe3bfcecbd36e78ecbf2d865ed. 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/JP92L2202000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a1fc3fb71a8f81a04e462b5f5bf8fd07ca8f08fd67a841e1e1a2af0f6508d3e. 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/JP92L2202010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22117615f87d03ff64a51fd061340eb5d2952f54e23d7145ef9cd256f266cc23. 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/JP92L2202020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x492797e2eaf59e09996af59509a1e26b7a2078f47298b4ccfbbfe247e86233c0. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:08:22Z), 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/JP92L2204720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x142d4882181f35244cad772bb381e02ece7e86123f94cd3098564fdd5252ffa0. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/JP92L2204730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cd37d1a401aafb8a443d0c13a958a44b66197d7cab112fdd4182d3f6aa979f3. 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/JP92L2305670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f57c002f59dfc787fba076a60c8ca1a2fe1a68883923695de30260bc4a067cd. 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/JP92L2305680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd04378858628b00489edd862d32b302d11ee3f6b90084b73c61b7788e6a66c2. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/JP92L2400180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97325cdb926460052b2610bbd841a7af996fa871d955bb0f1a23793017f12c43. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/JP92L2421660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd1e6165b94bbf4d9d02aa533e6c7e25e9721fec6d0f6a9281806ad285377ef7. 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/JP92L2421690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc656895a198e44efe9cfa3bb629e2cc0a0bdfb64e56f7dd02adc67273bbb4c29. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/JP92L2421700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4456a094561ed304e80dc04a2fbd9124cf6ad2e9c380409f63d03f6b9b6154cd. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:15:59Z), 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/JPWP02401457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x132f8104671a6514192c7a41efc9392fd9cee1a384609a0b5f0067e0d3d97155. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/JPWP02401461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ad8c564c11aa1c2cccbf8c4e1ac6cb703571f5a793887cf0b1ba44e3f95fcb2. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/JPWP02401463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefe8ad3c20eb556cf1e9e78b5955c273b6d477bf49300ff58fc7883899c0d535. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:40:27Z), 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/JPWP02401465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb1ca49ade26c079f04894bd5d9d913a7ac0121608c942ae88ca54765d017833. 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/JPWP02401466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9528657abc54f2baed981d02bc7947ed4875b2d06433703f830256ec3df0a397. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/JPWP02401467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12a2793a6703bbb1d7999dd6ab86767668b5a9c77120e26266c7b0ebe2ca4271. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:05:47Z), 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/JPWP02401471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71f190a535f72450dfaddc3096b97dda1fa05163211dd8b46113906f32d8fa20. 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/JPKI02516663.
戀愛魔法藥水 (動畫《魔法藥水救救我》片頭曲)