thumb|200px|The "Yona" Greek king of India Menander (160–135 BCE). Inscription in Greek: , lit. "of Saviour King Menander". thumb|right|350px|Yavana kingdom alongside other locations of kingdoms and r
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 0xb8289aa8c76f473f239cd9140146f19b7e7be1b0430845a9c198d9eaccc70616. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2094196f-3e89-45d6-9df7-7de051c8780d.json and https://artists.proofprofile.net/proofs/artist/2094196f-3e89-45d6-9df7-7de051c8780d.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 0xdcaa5c54bf06e4a5d5d4fe6d63efb4e9790ebe8423adbd253582dd24de978d0a. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T06:50:04Z), 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/FITI30900019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ff1d649e9223f193b97d157c260c43797c59cc73eb8cafaccc4bfbf5c0a0082. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/FITI30900023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a4a5d0b15fab57fba1c0e9ae46784374e20456bfe271d3ee65ed555fdd70437. 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/FITI30900026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6131b7b89f961b45082926958823950ad11859e630b4f4a8efdad6470b673c1d. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/FI2KR1400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a818620dc6a3dc4c5c84e89ad71f603b461443577d2d7c74d43a4a345138cfc. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:39:28Z), 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/FIKR15000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c89ebf55d85031bcf83ce90a4b9b116115fe3144a5f7e6fedaadf0ec2286371. 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/FIKR15000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f7c72b29de720ef1fd4ee94e5df215f3d21cea6798abe9268077ca88309de0a. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/FIKR15000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfc31a575cad47ba4ed2ac0781160343bef5e7bd7cf82b5e4a128ea2a86dd841. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/FIKR15000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a1a3998bba930e7e5a98930d2cd65a4d4f7b29b6610a6664edf68281a66118f. 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/FIMRR1600207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c7933443274c16e9f926391f30a19fa5140aa6470aa349a84ecde02142b40b2. 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/FIMRR1600194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d5bfc0b4829e3d2668e4769b554a04fa1cb6549b6b0f00c434e4a5b6d4cb10e. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/FIUM71800051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fcf1a156075d905da4e48b2a245645d67080a306f8d4674c35bad6771eaa40b. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/FIUM71800317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c8b2d95e15c092ed89e293a931442642ef3cabbecb8b79eff330597d578020a. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/FIUM71800318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dea6d321a6ca702167b2ee680e8a91b6e8e58fa43d0a941f6a81d57a86603ab. 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/FIUM71800320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7ad4b296c7746a037a31586bea1fcd4ecb005d1ff061e151f89812ed84a3ef0. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/FIUM71800325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe34dfa5d89f07d9eca2963f6be2f6907c49d51660c89a867dd71bf765c80ba7b. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/FIUM72100030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4250935246d9b5d9f1e70ccdc93f46c212f0549fab7cc8ad8f0c05a1482ef9e. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/FIUM72100024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77fd9311fdff4bd718169c9221f72509c793cf67a757423fd96cc5c284e1292b. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/FIUM72100031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8643686b675f83d8afa5097737f0f74ed9ad143cf3fcc5ba7d4aeaf9eac6dc66. 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/FIUM72100025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29bf636d4c67d10895212fe862e912e3c85423b84108b84f8ac59d927dac52a2. 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/FIUM72100026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda095d8b7e5e944d25cb318e59eed70fdd6aa7662553637149072b192f9deffd. Chain 2 (Bitcoin): anchored in block 957830 (2026-07-13T09:15:55Z), 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/FIUM72100028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49ac99503b03449ae53bcf256ad1c61cc77a0fd80d224181776750ea3643120a. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/FIUM72100029.
Kuinka kangas kudotaan (Vain elämää - Unohtumaton ilta)
Kuinka kangas kudotaan - Vain elämää - Unohtumaton ilta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4060f51e996996e57517d5c99c8968fed422a7598bfe9d727cdbf398ce492c4. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/FIUM72200161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cc4d0caeca4e499381bd39b235dab6db0cd74ac28ec6cff2c0b4a96a3546dc1. 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/FIUM72200316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x766fbc39e67d56f606861292f53ec5b4dbf8e98af806d6f9f9856b490d11ac10. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/FIUM72200320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51bf57245ca206f623622240acfc849fa65269d8032b4a0ad3426b8443d5f3a0. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/FIUM72200323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55d54583efda63b2ff4bd8f1c81dd66844f732ceeec472977b166b5e25571e43. 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/FIUM72200321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x746b8c5637835227d8a7db09f7b6d87f32c3c7684450cf90301a426e887d77a7. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:36:57Z), 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/FIUM72200322.
Saisit mut kääntymään (Vain elämää kausi 13)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa33f351c7344d0bd0b92970b536a474cb1759db7cdb52f7f639610614bce6f18. 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/FIUM72200403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b47e9e37f42c3ed362f5eea1ab4576393c490a8cad87e979abf8e973b246254. 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/FIUM72300301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94b727a2cbfa18989d3d1a578d14f2fbad4a63ba350058298bd21382dd694137. 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/FIUM72400250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70bd0049f77d52b195cbdf978643d7956c945ee1bb5607ee64cffb3297593fad. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/FIUM72400253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6becfb24cddeaae7178f7f20999b2719e77e2a9a632c7f81df77864184c1782c. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/FIUM72400254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdbba06b9bfb2050c9bc43c5f706cd02f189ee073516cb4595edaa09c761b4bf. 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/FIUM72400255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe334ca273a8e0dc05d66aeead5319555467573c4da264d1b88f2cbff77d25af3. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/FIUM72400256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4efdb1aab2558e12e3bf16781f8b00b438118bb052fb5fc95649fac50cf2965. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FIUM71500265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6002986346c0caea98268c6dba3b5c0b9b33e3996ae49b7e0a886bca082ca94. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FIMRR1900085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6002986346c0caea98268c6dba3b5c0b9b33e3996ae49b7e0a886bca082ca94. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FIMRR1900085.