Paster may refer to: Paster (surname), a surname Paster (rapper) (born 1991), a rapper from Azerbaijan Flying Paster (1976–1992), an American Thoroughbred racehorse Pastil, a Filipino packed rice dis
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 0x0d273eb77db669deb41cd9fecf0117b7846e090aeef484ba53de6e137aea4b5c. 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/3f90ce1f-a57c-42f3-a4d8-7868bbddeb02.json and https://artists.proofprofile.net/proofs/artist/3f90ce1f-a57c-42f3-a4d8-7868bbddeb02.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 0x435af284ff2c0e50f829796e35adbb333dd246d6ae72ae08ee36a37820f54dc5. 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/QZHN61916208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00642683e9449fba49d70ce56568f8a0d49ef11ddb41bc4b4ded8992bca07f43. 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/QZHNA1985078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ad190c25111485962fb489e772d7a85af2602d4f2f9f04bbc339d3425d0cf5f. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T05:02:52Z), 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/QZHNA1984377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a2d6318b7fefb977c3e081dc60dc89bb1680e14ecfe54a6d07a1960c86cc70b. 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/QZES92091774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f0418e3ee348f7c3e1a88ccf26b445d920a10381308998b7389acbe50c647d7. 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/DGA072143422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0217b421c09712bd5a3d3719711bd59bb33b262a6ab5391dee466684e5ed9bb. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/FRX452366876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x205fd4cf1bacf8818f5c2e2fb9acd8066a7d8cf2f547fecd974a0f334a911b3d. Chain 2 (Bitcoin): anchored in block 957587 (2026-07-11T16:48:26Z), 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/FRX452366877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b82d03091f8f0489564cbe67353acb6cb2a5d4b98544fa8f03abf478f5e64db. 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/FRX452366879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50e7cf681cc4ae38b40ec25de29b3432a78a861b7601e6fc418d6b294f569946. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/FRX452366880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x164330f28415b5411bf7e0a947ac7d85022812899ef2429450e0573c4be3a1d4. 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/DGA052347529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf18b16c1ab7f90f8fdc1960ad7a568d7dd06d627820dfe107fb7bbd3fe156046. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/DGA072387365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b144522f383ea005bf1ff30c959811e4b9f17bd7373ca50f66c3a469fe7d572. Chain 2 (Bitcoin): anchored in block 957583 (2026-07-11T15:53:17Z), 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/DGA0Q2398532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1baaac216a648615f92a064f7015684694b8b8a030c59c36fd93a1d122093f42. 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/DGA0R2302194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9d48f19240b51ffe75c81d1651d0316eafcb7a8ce7aad4f45e78b8f80862590. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/DGA0R2311991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab7067ba02fda738873da08f3ed7f92540bcc0f4f26aed646b4097d1950b75e3. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/DGA092410751.