PBN may refer to: PBN (producer), aka Panjabi By Nature, UK-based South Asian music producer PBN Broadcasting Network, a media network in Bicol Region, Philippines Providence Business News, a week
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 0x72e46b2c129d59858a792f1f37cd39000cebdcd80bd6ddde18eae9806c682bd8. 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/40c5d999-cdb3-44f8-a10b-71268ed9afd7.json and https://artists.proofprofile.net/proofs/artist/40c5d999-cdb3-44f8-a10b-71268ed9afd7.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 0x253ae962eeb9ab554e614d955e4be5c634084cca98feb7c23d0a37ac0deaa2a8. 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/GB2DV0300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67072fefa4bafbaee457de55ca7e014d16170fb3460f352cbeb2ea15a9bcbc6a. 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/GB2DV0911004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecb3fb855556b7f30341457b4ddbb41a388580fea55f06626bcaf9aa28204fbe. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/GB2DV1013003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x300a8c1d1e606684579da1d18f87bc8187c498a8ec3513f3c6d8e0451ca3bb70. 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/GB2DV1013008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x105e8e268207800fbab25b9b2cdd6d1f30b4fa6e571272013ef2be85b651b4fa. 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/GB2DV1123002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe47eeeae45887d096b25abcc8517466e2fbaa74cce3e78e298e8ed91d793832a. 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/GB2DV1123003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x683c4f76ce38565a9820d600efce582b91d06fda4ff259b5a01a5bdcbcf49f9f. Chain 2 (Bitcoin): anchored in block 958117 (2026-07-15T10:25:35Z), 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/GB2DV1333001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb52018a4183b464619c0816e1c58441d3686e1b62f9fcde09acee8e2b7915c47. 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/GB2DV1231001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc7607bc04c853fe3170599e3780e520b9e7f223aff31d9a0e2e7551212bdf82. 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/GB2DV1636001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7d6a8beb5af7407661d15aac04fc2325f9af9857bc3115a89720b5e8e951a3b. 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/GB2DV1942001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d55a5265c5f1dc68ca0a75eb81db911acbd6166a545f75541835953e43a4799. 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/GBEP32402001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaf09af26a131285e414f8cbfe118ee1c5e1ffe794a9a232f302ad41ceeee8a7. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/GBEP32402002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ee9b4efbae72ddfde511577ddb2c8de36f85781fc988bb4ff557ac24fdf61f0. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/GBEP32402003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc76945108c8023c25407d15cb35c2bfc3bae4e8c9bcf21944a2153abebef2aa3. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GBEP32402005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf641f8df13ed875b9057b4495db026c20f50f2f184f0ae6347a6dc7b537bda4. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GBEP32402006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14ad14bd6874cb5fc8028dcb8f5dafcc41c9d7e40b2b1cd81756918c29caa5d9. 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/GBEP32402007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5871c74421a426b6230679324bea087f8285bc894e71451236f45a150d09af39. 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/GBEP32402009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd4572e7bebb059dce5bbc24b186a56a432537c95fc856ee6c8f3e44204954a5. 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/GBEBS0900506.