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 0x8eaaf55a925298360b6cc99c3c827f9bcf1da365366c1afc791096423bdcdd0c. 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/ec79515d-aa69-4b6a-b26b-429f48e47e12.json and https://artists.proofprofile.net/proofs/artist/ec79515d-aa69-4b6a-b26b-429f48e47e12.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 0x7d67b752038b61e4e66e2b620312d127197ed3d188cbb9e8964f6edce162ee1e. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/KRNAR1604270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3633f34f6f8c996a5c90a2df6a421a54333cc323b823f6629e47e685f9d819a. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-22T00:40:34Z), 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/KRNAR1800090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e0a4f441d6605afd60f9ee80e97deaa6fcd0d972c430534f0828884f8e4f3c2. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/KRNAR1800091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b7b92d2b3aeeca5920c4097810b1e04aaad487419dd459d4e18b57ba9728706. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/KRMIM1813256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36f3ca7c966bfa2dc49b253237a308f151fc7e3de1a52ef2dc59563cf32189c9. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:18:54Z), 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/KRMIM1921736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89c2624962ba5ff93fe815410edbe7371918c7b8c9daf1d8077848699d9cd457. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/KRMIM1921737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4473c6b9ac017a205c750a3e4d61070b310797b4567e89313f64638483580f94. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T10:54:27Z), 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/KRMIM1921738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f11e6928c64f485b41ed26bc3fbb9d561a3d5dedd1f5f24bc9e4600390b369f. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/KRMIM1921739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9541e55d35c50fd6c9cebfe231d48ec637d506a81d2300365b6182de2e8ea16d. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/KRMIM2130294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1690752b2745ed434a50d2b67ea35a67c8d8f25c23555a3c570d8aba106a63f. 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/KRMIM2130295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42f658097d3ff82b90d13d637ed1ba34d0eb3ef6207909bd4a963ccb9699709d. 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/KSA012181806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94fe1777437d7bddf3faba95686add724205f53757498f4ac160f54ddfb5c401. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/KSA012252810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dce95756ec85993594464395fa88b6a43654d6202d9e9d8388021622a99228f. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/KSA012352592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bd3658f743a8f3ef66cac5eeb642b1dc979029d395acbc0faf599235bb8ec35. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/KSA012352593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc2e3c8b8378331a35fcb6fb98e25c4cd0e9e62d0629a5f351f15907e868144c. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/KSA012352594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49833a111c744d36cec9bc9aec816d0f77a6f1204f25cc791ba583048b3873e9. 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/KSA012352595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bc72f65d43920054350b4cb0d9f3975827e2c8cee0905351f55cc1ff10d5770. 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/KSA012352597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc68ee14407d784795251a7b26b71df9c10b4ac34b29e7349e75bc68f44eca8df. 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/KSA012406929.