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 0x77b2ae36da5e2341b7483b51ac9b2bed0b130ed1c19636f152b7550433810f50. 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/3187023f-a7d8-4d85-b157-3caee644fc4a.json and https://artists.proofprofile.net/proofs/artist/3187023f-a7d8-4d85-b157-3caee644fc4a.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 0x8e203ef13ad5f1814ee2d40ba36a7daf1fbef696ce1a4abc4d4aa46b8df63a18. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:44:02Z), 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/QZHN61986365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8acbf032c83402bcd77590c04fb05405d80bda3168d458025fe050d20c298680. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/QZHN61986368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65fa4dca589a4fc70c777d41d6c58fc652199e6513e776688261df58ceb6bb95. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:59:24Z), 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/QZHN61986369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ad28dbcf5c127c4c04b7638eb9ffb3344cae67fa06fd09f73e1671b285e8a0. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T09:53:55Z), 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/QZHN72027204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc2f5f660a50a2801583fedffa0981c0986a27180e44a2ec891982bfe7ec1e24. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/QZHN72027205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71d41acc8d1de2d303899c1a8a6ada856d827b906a2a26749a5be51507750209. 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/QZHN72027208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8926e888e0b762dfbb453f606095a5c988d0b79d7bae50ec2ed880bd45981514. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZHN72027211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73c38d03cf327ae0f2285b6ea8e10ba0c8b7f9694c60cdb359d6304b4a341464. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZHN42221350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe69c700c75a3e30c5531eaa648f7cfd7f8d5c0fd33dd90f235d22b04d2d3803a. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZHN42221351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c19b29e9958b4856c9e3a979266c1b251653bebf997d356fbe52584c5c1fdf1. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZHN42221353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x802229e899cbfe94b848e5f19dccffa7b9e90bd9862b4a762d6dcacb2efa5d63. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/QZHN42221354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc9a20e3d5e2737887dbdc149b4243009403f74adf5dc36701cfd448f2940e66. 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/QZHN42221355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76e6e82d7d5981bcf216216ab61cd112c88ad5a3ebee2969381a767fd18389f1. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T02:27:15Z), 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/QZHN42221358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdc897d647ea51ee59668474f56aff9b7df1d0b3368cd7209f381942f27c129c. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:36:40Z), 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/QZHN42221360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x100b84c4758c06240d84ea9b4dd3a76850c537660ca5983d21cecb68de6a3dea. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/QZHN42221361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0623f7ff9da812b180d0ace5022d01cf9e5ed841872ee92891f2d5583dd491f7. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/QZNWV2419675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc60fd070fc2034f7b67751ca095599a1b93efaa3e27569c094ac29facfbc1273. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/QZNWV2419676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8f1d708134b30042d43a68fdd2ac9c36eed100331353824c85658f7b8dc66a0. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZNWV2419677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x345214b5d5b5e051fc2cc16de7915b421e5df995d294e6b5939507a2e11e9ad8. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:02:03Z), 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/QZNWV2419678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa598b2044a654af055afa5b9d6f9a7929647d328b8925b2a15a494251e4463bf. 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/QZNWV2422175.
Bits + Bobs from the Flower Patch Vol. I
Bits + Bobs From The Flower Patch Vol. II