is the Japanese word for "Star", and the Japanese word for a Buddhist "Priest" &/or "Monk" (僧, 法師 and 比丘). Hoshi may also refer to: People with the surname , Japanese badminton athlete , Japane
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61e919f007c43e21b37eaaa3d0a37b434ec3b926ef216c0e393c3299a6707e4f. Chain 2 (Bitcoin): anchored in block 953724 (2026-06-15T01:43:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8ac52220-5d43-4683-88c1-660851f97133.json and https://artists.proofprofile.net/proofs/artist/8ac52220-5d43-4683-88c1-660851f97133.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0c623cf394a9e0c069750a4655d56aff8e6bb809eda276c81a6ef6d9c22374c. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/QZF452074535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29d01c158745be2cc8c2fb8cfcc590ae55cd74c2366b71615c87afb3a4dc5774. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/KSA012216160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc612641ccc444cbe3ebad3769501303adf8e7e859d9444a410748e3a3f28d5af. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/KSA012238372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0f750015ed6f49ebcb4772c439559915380169547c335d27765549f62a63685. 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/KSA012238373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x318ce673362d02b42f460ae14493b9b909d0c440e32d82079f01122badac12ea. 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/KSA012238374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09924505c0105e9547fb0009f78f76e9b25ecd431ff3d570fe21a01bcc17b050. 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/KSA012281479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ff12aa9d26d3f80d02585e127eba5c6b7da7c7880dd4d89c0033f5fcc5abb79. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/KSA012281480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c118deb7f7b57391277833e5d29ebea182a118a7fc366678ba0622b7612ed01. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/KSA012281481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca92171d0a828f453ae32a0b0060890b347d2d224ed6440e04d605f844fda0af. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/KSA012300061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x128dc298a82c478873d740bfa7eeabbac34f45a30568ee373f1330cb352bba1d. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/KSA012300063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c7260df0007a239b6a5ad4b1bdf7e7156b207520b88c709265aa84e8f75a80f. Chain 2 (Bitcoin): anchored in block 959026 (2026-07-21T15:38:13Z), 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/KSA012341186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc8002e1ac26baeecf035ae900da1b126145150bc977f9639a554908a9e1831. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/KSA012341187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5f87e99a3c0a256e730bec61daeffb3ca6d0537b8b5ab4b33c37c57d1c9faa4. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/KSA012351541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30e59fc8eda118a11f1b873a0a3acaa8a7dc3201778da889a923460b6ad92901. 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/KSA012351543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x196b1a987bc7b24b0194265f7cb2f9965ac4a042ffde59e44854010f4c30c9b6. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/KSA012369961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x615aa5e13c8dfb40b59dbf9b5f33d490eb4066dabe955da293073db11a3b3419. 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/KSA012369962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ed2c9195481f8de72ba22a28f7b143da97b18ce9838f132fe923b0494b77769. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/KSA012369963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b80489cb05fb287ef5e1ce9870b69c01af46fc4b6adcc37418bb4a7d1f0ecf8. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/KRG032501082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c0e5a6726df23895e668c604659eb084a3372480e28bca57d587ebf2d61e30b. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/KRG032501083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55bf3ba99cac919969fb1ca1f4d5ceb0d3203bba47b3e93d7a85eb4e90109d34. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/KRG032501084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec360fa562e497e72092226e99e0e57503fab043bfbeded7d4f501520940b9ee. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/KSA012387117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24735540aa5a48fba6aa810f97fe70ab89bde57b50bf0e505f0895ca00e0b726. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-19T21:40:06Z), 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/KSA012387118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x070ebef2c666a15a6aa02d1130fa9fd30f5d746040da68bcac018f0d8791c648. 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/KSA012387119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x122bea650aa5973b33e3ebcd20827afb859a401a5448f33327674c6ea23adf3a. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T15:22:45Z), 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/KRG032503455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cb2861535df9aae5a12015c008b2e6b16044e17bfa68e25107a3bb848647555. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/KRG032503456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25b564f5b8ce6683134d0cc3cc2a265b75811ccd41ca2307c5b24fb407453e00. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/KRG032503457.