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 0x7a828323b311e9fb84ff8317b987595e6bf754747bbac4951f7b0ac132153452. Chain 2 (Bitcoin): anchored in block 953877 (2026-06-16T02:39:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/04ae3051-b6db-48c1-887b-f3cfe6458f25.json and https://artists.proofprofile.net/proofs/artist/04ae3051-b6db-48c1-887b-f3cfe6458f25.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tad's Record Presents: Dancehall Mix Tape Collection (Mixed By DJ Wayne)
Dancehall Mix Tape, Vol.4 (DJ Wayne Mix)
Reggae Mix Tape Vol.2 (Mixed by DJ Wayne)
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 0x58e8113356afeff875cba67b4ddc4fc482d231daedb685b2d135edf75e56e2a3. 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/JMB111700654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d4afdb1388fb982719a0b3c41a5379797f943737a36d1a030947d521639eda0. 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/JMB111700657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1f510b1bf20a9958a24819543d330ca75a0d1d67349e61feda8eff768f468d8. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/JMB111700658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e6e6c68664fe7632fcb11cd641cf6127a33212db4fde6905bd235db2889533. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/JMB111700666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1867c14988fa1001b7da3a7cc311a9428ec9fae4f523c335c7509b8d536d92af. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/JMB111700673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a1d4e8050dce16875911bae95c467f174e0d851ba65ba218d2a03d37a285b56. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/JMB111700694.
Dancehall Mixtape Vol.4 (DJ Wayne Mix) (Edited)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x379406cdecc2e9c0baa1f4a19ab848f871c1cb05ff605f6a585e162bcf38558a. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/USA2P1703174.
Clarks de mixtape (DJ Wayne Remix) (Edited)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47f97ce24687f0b59fec34eecffd6a894ae9ba8bfe4dff28700ccde0d408dd8c. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USA2P2027096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51c428e55f81abdaf8a18d51f286105317e6df86a14e990e6bcfa7ef7e999705. 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/USA2P2027099.
Where Is the Love (Black Child) (DJ Wayne Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeb822f2b4b8aba48df6b7946f0a27e28c77a31236704488dc51c09025936433. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/USA2P2027100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd96a82dcdde75b2b47659d6d905c19cdbc7eeb5cd904588423bae25db65b0da. Chain 2 (Bitcoin): anchored in block 960166 (2026-07-29T23:39:29Z), 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/USA2P2027101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b55372d54cb62f00c52459e24b58a58ed7433322d4093ff93053bc42afe25dd. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/USA2P2027104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x327740d00d8ec1bc60ba73b1e7eba248a8de3e691495f135881e3a3fffeb5380. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/USA2P2027105.
Dumpa Truck / That Sweet Yuh (DJ Wayne Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44c385d2843339316c5da66bf1251c2e1f7a0c0dc6b0dadc83848ffb9afd3a34. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/USA2P2027110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x201a5b58beae5b95697eea9fcccd94ee6db89f76021de97ef08047c62855837f. 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/USA2P2027111.
Get Gal Easy (Blackberry) (DJ Wayne Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x100ac20addf0d0af8563c5b5055a3a420765b1711da4abd5544e21727a4beef4. 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/USA2P2027112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef330c461891e1a40c38c84237f11fe91875cfad85d0a1ad5ed2292bb19a4d7d. 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/USA2P2027113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0415c000ab3b2ef77232a8b3ea16ab02fe803b258c57838dd91b38176e2aa7c. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/USA2P2027114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf48eb0bee4dc7b5c33fbb6428b4a510fce524d41db448eb4e6b886511383ad8a. 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/USA2P2027115.