C2D may refer to: Intel Core 2 Duo, a microprocessor line by Intel Crash to desktop, in computing, an event where a program exits abnormally
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 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 0xe51b6f2576f84beb6c24f420ad5987ffa329d416d20a0148d4da006cbe7b9c87. 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/029eefb6-c159-4086-aa74-298f55e8dc8e.json and https://artists.proofprofile.net/proofs/artist/029eefb6-c159-4086-aa74-298f55e8dc8e.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 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 0xfabcc315951ab2c58f2ee0aeaf01759ec4188c37b36581bab89a973fb856ff5a. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZPLR2006767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3277c3f5737d398b9e8134174706246073fdf1aeb9cd97178b8dc96b9ec1e6d3. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/QZJRB2039270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68480eb91cd3b709e23cf801a213d7569861b96886798847d72465445a8b2481. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/QZNRS2097077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26a6f401594f1adfb6e027fae4dcb6bcbd807969df7e4280b2d569133ce191af. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZFP52122230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa76d3f752d45b565f274ce19c35362cd863b29920a45aa2c4417d8c4e6c96ab1. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZK6N2188510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf058f86302dc2a524557d2a4060130eae10e994e4484684f60e573798975f49b. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/QZK6L2196371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b5fa40978e472602e3ccaf6d580b1d16301c5ad57f5fb5446be712cd881309e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZES82429939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3d0c462b8f8926320de142598dc7582efc464577f9428ce76d4834eb428c6b6. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZES82429940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b11000cdbf8797fabf0ec6ddeaad336d8222fe2695197b9bd37c4b4ed513253. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZES82429941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c4215afd9cfdfdccc7f314d12fc10e02b12f62cd9502dd914097dcb30771eda. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZES82429942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2309e2a125c524d525eb38240805af42aa8434fd31e13a7b6353d3e178fc6ab. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZES82429943.
Ima Take My Life And Make You Feel Like How I Fucking Did
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d3c36e0d845d0e7a113794f55197ecb61f0e21bbd4b17a9b91af9243832b5ed. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZES82429944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf624a1e091349ce4cffaa5caa3b8ea4059f7f6bd4fce5a489bfeaaa117572ae. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZES82429945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80d69aa97e41f9d5b5e7dbfdb96892905443f041d61b0cae9564e0db87eac282. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZES82429946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa99efe29990638523fa06d23978e090df6f7d216ddadff718a097f8660e5f083. 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/QZES82429947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eaf7f81e2adff5cd8be7481b44b8f593a06d1f3cb7a1ccd3634e23f702ab600. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/QZES82429948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1d4e00f03bbd16077f1540f2186a94beee7ec20041755d4ae9cbf488c88fa8f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZES82429949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf85c061ac681951c872db741b844bf7892de994bed401db93d05ab81da7c3b07. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/QZTB22369288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70c7a4f6c54157c9efe235c4694ad95b507a9ed12ff8cc86971c2411ee32df08. 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/QZES82429950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe187c8252d888bc18757551e584d112920000f8dab1ab3fc0a056a15ce5b77aa. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/QZES82429951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbe4fe1cf1fbc7d8b1a2611f703225e77888336caa7c657724253c0ae3d04581. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/QZES82429952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0f1448eb490183c196db2a1e63cd6198c14a800dc9a6511cfb8eea69b06eb68. 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/QZES82429953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xede2b48aefec364721915d64a1f6f67c158d60a394e793c88f08eabbbc01a27d. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/QZWFT2486764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf5f1bbcc1477710abb8e28e53bdc1d234e2447217ff3da4922c52e1719c8496. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZWFT2486765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5055fa282aa3fe1019f1c0bf0bf99f586da5d0ca5f923bd3cad3fa630cfe30cb. 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/QZWFT2486766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ff572c025d33650923301d204a819e50ac0cbd1bfab7ffbd22648fec59f0d8e. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZWFT2486768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x304661fddc54fdf02fe12d092614b6d43a6c3bd9a2630b39c5d78885685d48f1. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/QZMHN2051682.