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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e4cf9cb488f1c4450a38308086a3a493944fc2ede580cd8343074d9b932bdf2. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2d1db8f5-f81e-4e77-b937-ca325287f84d.json and https://artists.proofprofile.net/proofs/artist/2d1db8f5-f81e-4e77-b937-ca325287f84d.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53c1274fe77a06e4dacf94239354bf06c94e31ef869407392c897ace9f891f42. 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/GBKQU1397672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1813572e854980fbbaf3ec330fbab95672979f4bd0872031eefc4f844395099a. 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/GB8KE1356830.
Demons II EP (Incl. Rmxs By Juliet Sikora and Kant)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x580df9c480d22b9ae3b734d9f7540b3dadfcef41f776b7bd01e3f7f440f8dccd. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:20:13Z), 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/DECL81500182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa13395353231ea118bb4a8c7e4246b152c9de275b32884e184b3ea77a81512a. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/US83Z1657720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacc4da899b538d55d5344a2f90d1435956bae2c282398ebfa97be242180babb1. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:20:45Z), 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/QM2PV1851228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1c713519dac24316b1f18f022bbbbc0a63a3eccaadd03cae18c1c65c916d17e. 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/QZK6P2081843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf2cbdc672477db92f44115db5f738754d9d41c038b587bc0fce839438e42c1b. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZES52220670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef7d96ae95dc5e2ddec5b0a29edc5af14a0b8ca8d3e17d9715387962dcb07f31. 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/QZES52220671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71bafb91cfd196edc2a879d34ff5d1a0dc2f2df775b7c682b762edb4af53ec4b. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/DKE2N2200101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39566054be3a030a2c6030416eaee8586afeb6a815a1d77505e7af9b3061747e. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/DKE2N2200118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10d088428ba49567c1fcb44efeb47e8a9d1b53aabb0047e173160f3cdec83154. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:41:24Z), 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/DKE2N2200117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31b598479356b057b3a85c7809a627e9b7e34277c8cd8bbe404bfc91541b0849. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DKE2N2300108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x786a682de85a3b731836b0a9e44404c94fc19abd82f32dfaee902e1cbd23fdc6. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DK9K72400601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08374644f63b9a4eab066d05d13a3f140379dbe9ee60895d0800a8f073692bd5. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/DK9K72400602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x889cf073285f2e1a11276b6b268ae316ab6f0e7b9521a564087f16f131049883. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZZ7M2527677.