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 0x0a847bb09dbdd18cc055c3b3a56daa8a7dbaf140e90776f7cf6be661419c5f59. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6e6ea93c-a00e-4281-bf14-f5c84d9e376d.json and https://artists.proofprofile.net/proofs/artist/6e6ea93c-a00e-4281-bf14-f5c84d9e376d.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 0xf239051526188079311dc0daabc6fc60e22c5fa63dfb08c87283399f27454eae. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/CA5KR2161676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e2aa8eb73e723dc4276518291975ff11d0e22769316e46d8f98cc4455e3dc0d. 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/CA5KR2162265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d6d80965e90f593e4b4fee0177d3d916a6d475b4ee5e3ac236077c66b3dfe22. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/CA5KR2161680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa224b57bf0d766030a3acff9963ff57e2f230a488c8869a17190e43b6a7545b0. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/CA5KR2356238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x325d6e4961528a3509e70595c0d75fa56eb82d17071c69b3ef2d0bd3bf6de424. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/CA5KR2304960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3f53d2304b76931fae6076a52aa0c64a60d5abdb080f0b255d3e18122572b07. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBSJN1301037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xade01c9434a8842db4f32235de3863777633eeee3b93c72577acf680a4e683a2. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/CA5KR2033933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d7cabd763f6095d3e4623a650fcbc99008d5a13468ef661ae25c8bc34ac5fe4. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/CA5KR2033954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1baf1649230b2d8d220c8de9534a2422c7e9f36451aec991ac9fe7f511c3ad46. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/CA5KR2033938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5794ad03c0ac7e2d91200fb9c1c087ee503786b5adb138824d438b1d1cf4b29a. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/CA5KR2033940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ba3f629c096fbfc8e0966cb296ef463e80f64103aedbd090992a0977b215df9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/CA5KR2033948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c76c9fa48ba203600568c2a2c8de0ab1c0bf5cf66d37cc2b5622bba53179acf. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/DEAR42097569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb182bf69f7168e35bc3573fbbda6aeeba90e6551008700c1241ac6baa0f35ce. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEAR42080259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c64bfc42d1715fa7c37926817f2e49e7f2399469152b11e680f73c35f3058ad. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEAR42037207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x662432b7773a2e98e3d05e19c2675a4b0d8b7daa4db38b693acd242dfa4c0dfc. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/DEAR42060828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x389cb02e2eb0d1be33324d7ff2db640fb1effdaed3cee4af85796b5d36b2e2a2. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/DEAR42036856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7509845c5c895ac6841a3c6bbec62b34bc3672bda254319d3352dead6ac5f96f. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/DEAR42042556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89e3db68c1fb2d677c4308268631cf0da001b1460e8c851bda12ca7e963dec20. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/CA5KR1966920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dd79be981044181eca16c53d24e768291d2775e9c49d153250bbfbaac9a2654. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/CA5KR1966921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7603b5afd30c83821ed04fbbe9bf1b697efd4365b5d561cc4f6aff78d2fb74bf. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/CA5KR1966933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8de262391328a57ea86844327472e3afcc41a2e84465be3c48528226ed1302c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/CA5KR1966934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3221bbfce06278050cd9c00ca46a57f9e71e03a6e1c9464939e71d0f290cdc8. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/CA5KR2305346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3877df77ab463a9167bec14853d36cf6d12cae5bdebf944dc844f189a3b7287b. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/CA5KR2305347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9d2b8fe3be602bdcab64f1dc717e91aa57b9125f28a28cba286bf956c406a4c. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DEAR41532906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67419efcd6137222a6b8106111ff0b824742d070eb1f33d182b21302c5207eb4. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/CA5KR2309735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fa64761d81622b1a98d2ad8cd6c92fc63c89e1c2283a8487351550dc3e943f0. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GB8KE1852713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e03184acf0179235209a4d6c3493b975dc57636ca51ee7473f6c65e73c23880. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/CA5KR2122674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0c445f15047454a2bb54c90e8f0e4a70fee7762bcfdbbb776226ca14c0765c8. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/UKRBP2200287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8798ba83742fb2b83f34c7c33b80db25429402e6f972ab708980bb67ad29c976. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FRIDO2112712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa59ee3d13b37dd5886488963964d6b3f848a2db749c34d0b5a1740c3fdec7602. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/FRIDO2112764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce955a188c7138df26c3d05142f8d26f47744172cd85adcad1cd3b57b9bd0fbb. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/FRIDO2112695.
Halogen Music Presents: Vantage Points LP
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x402330f98d5631d8c5f475917c79150ac8f61ada03b13dccf487c2c5f3cc6fd5. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/GBSJN1300921.
Mystical Wings Audio: Drum and Bass Sampler, Vol. 1