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 0xed70392527789e6050cb6faf688844d18769d1b5feaab0bde1ee95af80eb1d52. 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/da2ac16b-9a55-44e4-984e-e9c48e6eaacd.json and https://artists.proofprofile.net/proofs/artist/da2ac16b-9a55-44e4-984e-e9c48e6eaacd.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 0xad1029a4e1243a9d0b0878097723149ebf16213fd8abd9880ac232f31853f48f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBKQU1713302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fd6e0e138c3ea69468830168ffc7d6febf3dcb23a292d2a5fdaada020142493. 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/GBKQU1713303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4cfec833518c5578ccd99bc8730ebd3199bb6e747f6e5f698f408b5ea88ee70. 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/GBKQU1713328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3711d58dac69683f6f4ab3f750e4f4903814dcf423e425da4ce8d59354952ce8. 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/GBLV61705806.
Whisper To Me / Intergalactic System of Funk
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6fde0955fe900158403e8675185272f472b6b3353126a2628810156f0478664. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/GBKQU2069713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a022ebbb736c6455a36004af9b3febaa935bec6a3300c4476e7e6c29bfcee48. 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/GBKQU2069714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30814ae0678efd7a6d2f6500618561d5dafe407f759e0c5f083297a1bd08e357. 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/GBKQU2069726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1501b048ed14b4e6c23ab5d68e66b26963f14ade3f42ddb180fcb2a128e30d0. 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/GBKQU2069728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf17ea19053f72f31a3e57727f503752dbdaa368321b3b93a74824a36fc1c21b7. 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/GBKQU2262090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeee90c3576d3ca070d5244b63bf7f4f877e8e124d73bcb55c05c3cec23860ef1. 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/GBKQU2262091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf879dc307f8e1bbf8b7a47bdecd32eba5663456042c69d1da96069bd7ea2efda. 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/GBKQU2262092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0893649a2b79bf21ecf85fe7d71da7234348d231b85f22f3af7fc658564376e. 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/GBKQU2262095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ed3771f2e1df526971987e4188f16dfc902cffdcce414d1fe73027364546043. 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/GBKQU2262099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x715499ac8d1aafe0ce3c92aef99e66388ac0f821966b5b4e7df3a0a7559becda. 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/GBKQU2262101.
I'll Have You Tonight (Do Me Right Vapor Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fc4e8cdf1d281f8bb57b7bc7c9e79dcb4b49527223fbc3fe81a3a2b4800e3eb. 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/GBLV62315161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5679f02d5dc4cebc0c6e9f13bbc395de02ceb00505109f42ba3d28bc2b8bb43. 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/GBLV62315162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f0c0a0d8cd71e5138f883732319ebac1a5329b95fefab713e8465370a02ce3c. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/GBLV62315163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42249313ee790f6c08b1a7927cdfea27020233d0bdb0e1c43e86c5f9491dbeed. Chain 2 (Bitcoin): anchored in block 958697 (2026-07-19T07:58:24Z), 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/GBLV62315069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a970634fb1b99406e30a4e76f95668fa05b6841eda6d2bd5a618422affe0a9f. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T12:32:15Z), 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/GBLV62315160.
More Bounce Presents: Feeding U New Knocks Vol.1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacb3de92848c8e36d6fe0144acb0e83ec8b5face6d88fb3b6ec97dca7c4ce8e8. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/GBSMU5793215.