Coco or variants may refer to: Arts and entertainment Film Coco (2009 film), a French comedy film Coco (2017 film), an American animated fantasy film Pokémon the Movie: Secrets of the Jungle (),
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 0xdd86cdf8e2f393307e204731aa5225618db08ef8feb3e402fd4733208370989d. 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/6e737ea8-6a2b-41ec-bc1f-bed155306e5e.json and https://artists.proofprofile.net/proofs/artist/6e737ea8-6a2b-41ec-bc1f-bed155306e5e.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 0x84b9d2668ce9a654cdcf66e76c1cad1a011231b7085ce6c8aa8eb4d90a7b82b2. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/GBKPL2161213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd345cd17ba1f3419be1780e5b43cf270d47d1d00ede257348ec48397335b8635. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/GBKPL2161216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffe3509b0f96e067a7220801851dbf7e227c096d2870245d7de7846b850be82e. 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/GBKPL2161215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9df8ff13c69abe62cfe2b42151455197fca725eb9ae4e45b45fb87001047450a. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/GBKPL2161217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce2611e56fa7f142062af8163b8bb624e106c6d6fdb8fc978659c7c4e2e23d52. 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/GBKPL2213876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91add6885d840eab9fc8b5e595cc2503f0de0ac9f5d3ff27a50bebc5983d5ff0. 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/QM4TX2320409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56ab063d6d3eabb9988430c13dfdd5a6a574d69c4f03f16467233482a0f1f01f. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/QMFME2319653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x161323b9d4acea2071b86119a135460cc58db691d9f846532726fdd221cd9df1. 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/QMFME2319655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bd731e1449a8544653a768fc3d6d246795d30208ce0cdbfa561719fe8044f87. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QMFME2319656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4792db428500a7636eed7710d1ed1ebc665c9534dd414b5aba0d213ee709a27f. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/QMFME2319657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1e334c625c1b5bb2bb99e856dc1da10a648491267b8e264bb5ca1caeca620d7. 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/QMFME2319660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbafcd87eaecafeb1bf88f9c45883c5984488814be004bcfa7820ed8efbf2f92. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/QMFME2319661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbbddd8c5e7ca13184ec73b1920c3df6740bb7c91f25ef818c081686da0b4a3d. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/QMBZ92463209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda0e17c72a2d0e4a040ad40069bfaecb3a9b6e4ade7163eaa9623b2a780b7333. 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/QM7282480584.