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 0x10f7f75ef6c8a6170c86f86bc3f6e5d07b4f755a0ceb77413609e4f1b0a83f55. Chain 2 (Bitcoin): anchored in block 953638 (2026-06-14T13:10:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/397826d9-fc98-4533-af46-458c7d807ca3.json and https://artists.proofprofile.net/proofs/artist/397826d9-fc98-4533-af46-458c7d807ca3.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 0x40d639fec28353a983943c3efccbf7e31d854bfa6c6e4f11a6b6733a386331b3. 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/QZNWV2452550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5071f0319afd1e53be1c0280fcdf6cf7dde3589e4a88c6c9c90d5e03e0f94a4b. 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/QZNWV2452552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x063e149750004f71418ab343da7bf6ab263e0529edb45fb58eff11b04874fef4. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZNWV2452554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56f73f23f1856db89153c8c37945d2cf1a928e3ba566ed8f883d96f091d661c1. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/QZNWV2452556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9dd577a1b08d75d44ab8c1e1d00c0e9b1a342f621819ceea4a1c598e6e77f39. Chain 2 (Bitcoin): anchored in block 957895 (2026-07-13T18:41:29Z), 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/QZNWV2452557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfba3da5ed943af96cb0706d79dc16bbd29f6b2e71baa6edeb49aeb4f3e873615. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/QZZ7Q2445376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x957b748f0d1f49572c2dcb42066262ef741510894379fbe37c31b129b8698009. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZZ7Q2445377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ea757977fefa067cfe1d2f4effa2a58749864c072085909721bf5d30a58c3cf. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZZ7Q2445378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78a52c7ff7afe0a270770d2f5c2f65bc643d776514d38487acb70a8fa3422fca. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/QZZ7Q2445379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38e0cf9f7cce8b78d69e7e87492288027da4c4b01ee80c746f9425c153c3879a. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZZ7Q2445382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe84b29f6c51500367f78f91bdac9859d08e7550f1f8d69bd12dc05ac3967edeb. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/QZZ7Q2445383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf866351c9986573b146c5315f26d7a9ffb92e812300c10540eb89659b199e18. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/QZZ7Q2445384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca625954401a8fb3a9f32b337c2b08570fe7ba684ff3b92addbb33617f60f4ca. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/QZZ7Q2445386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16ef6631e9414115953aeeb635a29d8a26bd9908b4ec58877d97af05fed1214c. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZZ7Q2445387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb133f24a9e4ddf4b9a54417fa9a47d00d4cd66538ac4c0000ef6b89c34af08d1. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZHN62570203.
Special Request to All Nice and Decent Real Niggaz (Stop Hatin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b6f5304fd9ad153830e4cc0ea6153ba9dfd6ed82e2c64b33f474b9a3896532b. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZHNB2591345.
Special Request to All Nice and Decent Ghetto People (It Get Greater Later)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa80beb49e85ac5c6d2de44c5074a0cc4a75bbc5657697705cb72243dc43f19c0. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/QZPLS2515101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1c7772a0a27eddc92108225cfca89aff0e311a24522ff147daa825e02238863. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZTAW2505712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ec08e39766bb3871dc7441a5837252a192266b74dc9e2ba49ef035462a65c36. 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/QZTAZ2517586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32236d7b8f36f17944555b5e71968b98605468fb429a50c2a90913c3eb165059. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZTB22505393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d11038a791b97f3e393eee9f0693eedb1fc7ca821153f59dbbe1c92b2f7cb97. 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/QZMEP2213952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04ddc5a12c736a671ac5438ef2884d1533cf255fd324627e051b22b8c0c8d43a. 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/QZTBA2330823.