A coma () is a prolonged state of deep unconsciousness in which a person cannot be awakened, fails to respond normally to stimuli (including pain, light, and sound), lacks a normal sleep-wake cycle an
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 0x0a47cab1d26ef875222b5c5aa781dbb80a38dc040344927a0dfe102a80ea8b74. 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/2c18a62a-a379-4be3-a80c-da536954c19a.json and https://artists.proofprofile.net/proofs/artist/2c18a62a-a379-4be3-a80c-da536954c19a.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 0xca8859c5d44eaffb3d9c4b9bb669f02420e3cf7f68c2258ba1f1462946c80715. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/DEU671100046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadbb1be7a36138e469b48a2b3466d9eab68948edef99084286672c30dc41d0b0. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/DEU671300042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccf432c487ac85bd81a6673224428dcf2eb3297fa31178650726c474d9fe0ee0. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:14:44Z), 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/DEU671300049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cd6538c9beb1cfdaea18ddc792f2a9ea3fbe77d155fc788dcc021a7b9957af8. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T10:27:59Z), 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/DEU671400107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x518eb18fb4425784cae52fa1717bb432e6283d37aba9fdaf053bb8a83bf0c639. 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/DEU671500242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf93a3372771f7c81aa19cdb05adb5635fc61d5d45f89411d37e27367275b91c. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/DED621900114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x231b7e6ed0b4a3d4bfb3140457f2a1fbf97e3a9cb57d885e068fdb3fb1e474b9. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/DED621900122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x641ebd320f35343dc1368d2923d439b61637d335e4c6a385186bcac00ee6b8d0. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/DED621900124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81c87e8ca105d7787d3debe851a51213d7bcd56b8663fa3778640a7f47b6f8c1. 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/DED621900123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e9c21e8997e3f823832fc6719bf9866557483ea92baf87a2800aed2bfb4f2c6. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T08:34:37Z), 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/DED622400037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e9c21e8997e3f823832fc6719bf9866557483ea92baf87a2800aed2bfb4f2c6. 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/DED622400037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f88d86cf00d931cf54cc047e585b69ebe194ccd92a71a18e63d7a5f6fcaec5a. 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/DED622400045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb792869f5043bcdf2da59f8defd3291e57de0ccd19cb928aed2b85f68df51742. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEU671600193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39e8fb6b74098b1adc0705ff51907d8f4dac0a86842884329604647edc76da80. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEU671000163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cbb27990424823a0543e190d14b2e2a0ae7f4c54ff4ee5cdc1846ae446561c4. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEU671400187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80f9a68d440936440fd713d26c20cc17a703d87dad43f43a317998a999af6a75. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/DEU671300229.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1c28927608ff687824fe89c3a49fa54e09e45e154bd492ca178184cd6df3aea. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/DEU670900071.