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 0x292ed69ffc204d859b18d22bc61acc5778fc59ece33bfed9ca3a0e1ebc3d4d4a. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/913332de-fb70-4953-a3a2-f9d45c44a1cd.json and https://artists.proofprofile.net/proofs/artist/913332de-fb70-4953-a3a2-f9d45c44a1cd.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 0x341cf610b3b39b2873e8f53c62f8adce42e4b6aefe0808fb0e8620ecca97bb8a. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/AUMU09400024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87b98b93f00bd33a03b3e33a8f7de25ff7dbcd6211031c3976519296d463e60d. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/AUMU09400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaa5de64a4357d62c7558d7f807361762dad45eadc3c2db8a3977648dbe242bd. 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/AUMU09400025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6d6f295b58fc6d273a0db48d403d6b77a1645369c80eff6269b426521121637. 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/AULI02032010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27b2089edd1a54066ee48a9db66a6149669c1b1bbfd4ca52e745bd2233197ac5. 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/AULI02031010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6c17790eb1068294e4eca65ead30b6b8b8ef552ec7d97d2564ec7fbf38c1029. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/AULI02031030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c44762dcf799ae5ea59c3bf5796936a1ba2e06ea39a96c09807ee4537da05aa. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/AULI02031060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x680026545d771455ca65e07fb1c43065d8b80f53bc00b9acd792f4df22ee8b89. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/AUMU09900202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74f0633b362086c7d0cda7f4be7360a250f8feda698820d2023682b76ff8aa5c. Chain 2 (Bitcoin): anchored in block 958776 (2026-07-19T20:11:59Z), 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/AUMU09900203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57e418ac9774e62039c3f6f544f5d2f9861645c4eb38c32b2c349d731fbd8218. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T17:05:32Z), 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/AUMU09900205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27b34c241a2a73a0eed7861365671e35bb8abb74f223655f783d957697dd59c9. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/AULI00625360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e920c6c842c0b2a14f181fe37646200f56dab42e083863e77d23dbe4df94175. 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/AULI00625370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5d1effb5142dcec4630fb32cab1a589c0df8fe08641c6ea747f98488f59e1b0. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/AULI00625380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85f6ce59bec9912b5004294910bdbdcb994e17f2e6f397c03247d71d6b4d947c. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:31:44Z), 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/AULI02031960.
There Ain't No Grave (Gonna Hold My Body Down)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x575f92d94c7515f5a237971a171496e59c4c43c458975c7f8e59af30424726ca. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T04:55:52Z), 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/AULI02033520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc881dadd2d9efed62ecb10b33b2ccc6e3b6b521a9d7475e00c64bc155b65e188. 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/AULI02141100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04ada18a705ff5a23cf98767edbfd1fe6a2b2dc95be90fe8074fe428bee55aae. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:32:52Z), 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/AULI02141090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd85dff9ca3b736f1a546db93168d6085886dbcf6bff16d9e5e1d3c1ce0714ab5. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/AULI02353740.