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 0x4b0172d7ccfb45c1f7cc9e77cd0617241097c8e71fa02f2b0ea042a91040229e. 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/03360299-6450-454d-836f-6f049a85b740.json and https://artists.proofprofile.net/proofs/artist/03360299-6450-454d-836f-6f049a85b740.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 0xe1b6e14e53f22a8dbdf86b5016a8c36b26bba53212ec171c1cfc31e7c75d935e. Chain 2 (Bitcoin): anchored in block 957685 (2026-07-12T09:26:00Z), 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/TCACN1688488.
Makan Hati (From "Security Ugal-Ugalan")
Makan Hati - From "Security Ugal-Ugalan"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74d6b53c0a457744e6d8c4121e98656363b17e159e636452ee62f2f6a0dbd1a3. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/FR96X1628858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98767a2a7231015c2330a0081a1edf4a0b39a0642c9661759891d617e1c624eb. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/IDA141700787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29bd679d30677f2d6923d7fc96902fcc76fe08dbcee736ed9ec4e4737858b1ca. 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/IDA141700789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22334bb2a34fe28368526a763f39fb787b933185f929f387cda49d27fa4490f4. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/IDA141700792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x386d85caaf076b4d07d8106ba6f0b1c523f576a89432e3b5229a111402da42f6. 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/FR59R1838463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdedc04f45bd08ef3cf695faf7c358962c3f14001ac667c249290894e4d7168b3. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/FRX201925191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa61d28f14d215da377fd0a530b89d06a71f5c14506f1e1d55a45b96249b14b03. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/FRX201925194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x212cfb7c8ebfd4bc5544cee0cee104a6474c97c168e8968dd9fc105796be5b57. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/FRX201925197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b6e639b6c5b2c8e58cb2a3552ed878b4ad27645fb63e5aa8de4a54830b2dc46. 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/FRX201925198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x634c1592d8257549f8a5fc030442bd200671dbbd96731447bff614e1c6cd0816. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T01:09:53Z), 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/FRX452210974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb287539a806e544dded1a76a2982920004884a475708a3bdc5a27dc4da20d6f6. 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/DGA072314394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5e2e4895469f60d71c26769978a65de279c267b4cb7ca08377515aed3412132. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/DGA0P2308061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa071b1e5e155d2855d5e001975a3fd71cea451b6402aeab005c8be298f852c63. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/DGA0P2308062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cda1d661381f3e711c46f718d17f18309e5a24268e1dbbe0a346b9a83c8dd69. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DGA0P2308058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x338189ff95e88b8aadea0f716643fc845574bf8988f3010063f5a2bf53b21fe9. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T03:48:36Z), 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/DGA0P2308059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1afb17d538375eb275e3a544a6b006517091bf8b3f9129da6791c1a20b1c0b2b. 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/QT5M22561444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0b14883dc315d1bc79c540db8192a92cd6a5625c375c5b06886964d3330b80d. 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/QT5M22549066.