Circulation may refer to: Science and technology Atmospheric circulation, the large-scale movement of air Circulation (physics), the path integral of the fluid velocity around a closed curve in a f
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 0x9492274723ec7f7aec9bee2ef0a531ac86589ef6587e28345efa4a32939e41e7. Chain 2 (Bitcoin): anchored in block 953754 (2026-06-15T06:45:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/adad48f8-f7b9-45bd-aad2-8255a010f7f1.json and https://artists.proofprofile.net/proofs/artist/adad48f8-f7b9-45bd-aad2-8255a010f7f1.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 0x214bb0655bbaea2fb179fd5d38eccaf3350d2aede459b7b27dbec7f933f71613. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/GBPUP0728010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbe554693030b76a502e9d16ce8228359fc402e2580e7450f5f6503186f1f6cd. 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/GBPUP0728013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cb36d36dd4aeaa11327b8116a284deee5fb3b74e538e89745b1fa60c8ea6762. 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/GBBCR0106233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cb8d4f410454c8f20d300a856d91748fa2af44a5aea1e8ee3d4c1755a999546. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/GBBCR0106234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d6c5bc82a7646bdf5df280f029ec74ded34ab7f08838d25f9026e351f3f0477. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/GBPUP0728109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b9b2a13f31069e30c1ca067cc699c8723337bfa3546b08c2b21255387401715. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T11:47:29Z), 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/GBPUP0728110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9aaef6557654c1936156823e8d7e4f19bb599cc4e6cabceb5729a9fe686d91e. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T19:12:22Z), 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/GBPUP0728114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16fd9211b48972696e86b1559dd8e4846dcf9c0ee4d28fef8c0fefd7c502162e. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/GBPUP0728119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e86b9101b3df7d1faccd0d2d3a667313e6751bb9ce42893755fd850450a9a7d. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/GBPUP0728229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd319dbbf78cf8529121002eba361989895ea5b58b5c0030deadf49f2040627df. 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/US83Z1203417.
Glitch - Jim Rivers Colour Spectrum Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e92705ed1a6b1b0dd6a8329773c980e443c81ef465c536cc6e76308c0bc488c. 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/US83Z2423329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x972a3ac8a305f0d774ec6368cff8e222ec53fd39f28e2ed6bd2c488e83e43247. 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/QM4TW2550233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5940c9d2f1a499fa0278b978e21bb1e9655dfe7a67de9486e5f202dc43e8bfc0. 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/US83Z2526783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a691882e86760b459856cb8214583e9d0ba8ccc6d37abf33f55071f52b3f97a. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T09:31:24Z), 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/US83Z2526784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa540f5f4a02044869fbc3abe8876c1409141fed80c4670db8c6b3f721c4b9264. 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/DEG931891964.
Other Sounds (Original & Circulation Remix) - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1410a905c60ef3346a600d7f21e739e5058f74a5c122b7cff6000b042daa3e0. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/AUXN22426475.