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 0x0abcdd19f401b1f6d32e8215520e0338330d4de2a378c6380134d62227c287a9. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e39b13cc-dc72-43d1-8bbe-1ad4d63218a2.json and https://artists.proofprofile.net/proofs/artist/e39b13cc-dc72-43d1-8bbe-1ad4d63218a2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
she rocks yellow converse and she's my dream girl
the world was too cold for her sweet soul
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 0x2633c0d79216a3d81b2591d80b500885d6ce6b6ce4b0abc8c533fd371c510997. 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/QZFZ62560948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5df7b2433caca79780f1c2a0854d05acbef0d6289fe6464859dbd78691726d2. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T11:00:37Z), 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/QZDA62549400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe966c10ed2ce3ade57eaad08602fa5a77fed4f1f60679764c2b33fa172e9aa8d. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/QZDA62549403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd33bb484fca42e30f969a53829534a8c6b32dfe30f12f541bd51092bdd5ff1c7. 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/QZES82591467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bea959a5890d5cc4609e1925e9d776b87712bb8e91ecb62084151c4d6f380f1. 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/QZK6M2521812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e8b90bbeee712a3b80883593fd5d9071760c1410d679837b88fb20af64b05e2. 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/QZK6M2586877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4100fcf91e1a5dec286b58e59cf56330f9e82517bbe2c4d285a83d6c9eb90abd. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QZMEM2560775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4100fcf91e1a5dec286b58e59cf56330f9e82517bbe2c4d285a83d6c9eb90abd. 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/QZMEM2560775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba4d057cc68a1e11fa5ecf0020c83dfb2e783a8a17d566bbfab8872af13c6d41. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:17:39Z), 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/CAGOO2549315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccc6096479264712517f1ed169371915663fb1ca3c697ea8ce406e158448015b. 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/CAGOO2570305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd88931e19bf564fd2cff36904b58f5150fc389eed671d8f8b73e4450eab4aa83. 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/CAGOO2571756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50499f96d3021cf2112d6881180fa59c8a21333a08764dc8ad293e9829f00c8c. 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/CALVP2566439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7535ec626177c9e7f08c53f626be5c9a55155d04af46933b1737817a8a0f4e6d. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T18:46:46Z), 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/CALVP2566440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94c99b471969209534a968cb0a848d8d4aca1042038b638da776334071bbe4d5. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/CALVP2591097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb69d4a1d41f7b207c7038b7994abd819bf668dfff61bb82407e5db8ab49b9e04. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/CBEYJ2546575.