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 0xd990147fd610277eb741fd38f5d0ed44d0f63f853b9e98b17d12a8e0f68a0ac1. 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/70d8cd85-cf03-48c4-9974-ac67ba0c1db0.json and https://artists.proofprofile.net/proofs/artist/70d8cd85-cf03-48c4-9974-ac67ba0c1db0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Clock Dat (feat. Shamar Marco) [Versions]
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 0xec9b69c43424f0b2601fecf4ab2d5c4880500ab0beafe75a418b658a85013b62. 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/NL8RL2443261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3e4969019cbf1e4b799863cbc4391f58ad331f9fc727e52e57413e16c79ddf7. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/NL8RL2445422.
Clock Dat (feat. Shamar Marco) - Sped Up
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9a068bf5bf87def8a630ad43345b15297f86d614c9ee50e55f0a1f47c1d53f5. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/NL8RL2445423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec9b69c43424f0b2601fecf4ab2d5c4880500ab0beafe75a418b658a85013b62. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NL8RL2443261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec9b69c43424f0b2601fecf4ab2d5c4880500ab0beafe75a418b658a85013b62. 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/NL8RL2443261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec9b69c43424f0b2601fecf4ab2d5c4880500ab0beafe75a418b658a85013b62. 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/NL8RL2443261.
Clock Dat (feat. Shamar Marco) - Hard Tea
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2809582576ba8e47908e217f38582fd9eb6c7059126b96389f7316ceeac397f0. 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/NL8RL2461252.
Clock Dat (feat. Shamar Marco) - NOLA Bounce Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd794c698a15fd25a4bd54dc0f04b032e44a419cbe20e9092dcd1dd54943ecac. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/NL8RL2459446.
Clock Dat (feat. Shamar Marco) - Condensed Milk
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39d75070b27a5b9c3d9f4ab7ec3267f3becd81209ac2ae6dd7c31e6a6c3d53eb. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/NL8RL2461255.
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 0x7870fadc372a019e6204177ee8e17967bf9351f68df98b0c65e4944ec6e2cf00. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/NL8RL2445424.
Clock Dat (feat. Shamar Marco) - Acapella
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x290c6cef04a73e70fdd4686a205edae9a7a84f016499edafb6dd4c9e46270d7b. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/NL8RL2445425.
Clock Dat (feat. Shamar Marco) - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25959d65965e053e6f43b7f5bc52e30bd6c29f523893a7d41f1ad4733544e9d4. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/NL8RL2445426.
Clock Dat (feat. Shamar Marco) - [VIP Jersey Club Remix] - Super Sped Up
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5c4b23b66b13862929e847405645bf969b357618a12e555820e4a745e20b1fb. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/NL8RL2456468.
Clock Dat (feat. Shamar Marco) - [VIP Jersey Club Remix] - Sped Up
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7100466bf6956236aca41e67953b066944c97e8fd4a44ee63e1833e13b3285c9. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/NL8RL2457323.
Clock Dat (feat. Shamar Marco) [NOLA Bounce Version] - Sped Up
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x884a345e62613b8b7418494edfe47a2be6aff82f0bca3a36caa81f6db6e86e8b. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/NL8RL2461253.