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 0x0039b971e979afc4940782034d3b6bdc456bf848734f334fd95869e9e701da8a. 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/ec0d6cd5-846d-4a8f-b459-0f64f1eea31e.json and https://artists.proofprofile.net/proofs/artist/ec0d6cd5-846d-4a8f-b459-0f64f1eea31e.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 0x5c3f6f7edb56f4f212bb86cd53b353eab15f27fa01811d9642989676bdc4b4a4. 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/TCACS1690207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x283d76d361117c8ad7b7650e71d5057b49bfdb79ba68e5d428a8bdf45e73268b. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/TCACY1749401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c905c37e04c048d713428bc9686113ebdc06d3ae156b563de2009991f270936. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:01:00Z), 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/TCADN1836651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bf07a7448ac97156fda062a4ce012421b4e2c1c41b78a4851559c13d325e5aa. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:30:10Z), 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/TCADN1836661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14bec9a039a19a0ed2349565e9385261f7e6e28583b4ba3cadc92a08aaad4cc4. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:20:59Z), 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/TCADN1836666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb026dd4e4a3c076ab02382cd81da17cca3798a1c863225023a021bc086b88cdd. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/TCADN1836670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x280561bfad4a745b27d53010477be45abf057b7860967e3e3131610f0e4ca604. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/TCADN1836673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33f5fa09a1492ea312661a674a6658972374e03ee57ed0d1704254c22013292b. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:54:16Z), 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/TCADN1836689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb62065d8c674a8f6b072ffdaf734363e6ef65c18304bd2c7bf83368eb0c5ffaf. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T14:40:22Z), 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/TCADN1836695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca8ffbe2339ea001095c754ae5b9caed8ef749826b64bc403b23b21c87436cb7. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/TCAEM1920983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01156dc043394cd6f54145bc733f6f7b77795e1648b39b6cc071e9c8051501e5. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/TCAEM1920989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19687554ed7b4e14d55935e0d71b7c694388f1ba3be77c391b746d6e0ee9f67d. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/TCAGS2385662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0307b26738b072ea88ac5ce4b761d78937af9939969772836e90bb8d18cb2647. 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/TCAGS2385688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c007160f02809aba57d8b88756e3872978dbd669125175907ada3b61ecf5c75. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:03:20Z), 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/TCAGS2385691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a9602e12f32cf938b32bf6658bd51b3c0e137ddcbe7148557f4751d7ae990f8. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/TCAJL2518720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01eead327b9a04882b8b51798ccfa8823efd48b1e539e330bc75e46bd6699e2e. 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/TCAJB2474914.
I Thought About the Universe This Morning
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb50ccbfdb5733f0132cb029bfe74b69845b52e92f9e9215c43d7c7fea5134f08. 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/TCAJL2587825.