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 0xc0e9350efd590c0f6036fa7f8d99896f1e93836748be81ce6ee508f49652baa9. 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/03b72fa8-d384-462b-8fd9-4d629d818847.json and https://artists.proofprofile.net/proofs/artist/03b72fa8-d384-462b-8fd9-4d629d818847.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dd328994ed40af256aac82b418f1433467a8d5f2051b32ee085eed4bd1ba953. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QM7281951012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9e1244b555e84426218348da54e48cfc418c33396253f71cebf73e094f2ee90. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QMBZ92310931.
The Bullet Sent To Kill Me Is Already On Its Way
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21510fb8b4579a296b630eaf6c8084ad6180455cce0ae33655bf72b7697dd9a1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QMFMG2324456.
Jar O' Dust (feat. A.O.G., Lil Woofy Woof & Trizz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2af36c53129729e77dfc9c98f9048b8adf224a153a97842ab5dde99d583f08aa. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QMFMG2324457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b006c82348b2cc7ff5ca2fefce106af78c6ab2dd112d03422659b2adae8ea0d. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/QMFMG2324451.
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 0xec67ccc83878374450a1d343aedf872f04b0c8d026e659028e9f451588f4144a. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/QMFMG2324452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3f967a8b1679a344053052cd2920cd57171b687ec01f9bcf0c6caec4bad6271. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/QMFMG2324453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcb13201bc1b61ee8f39d299f7c617719c06c046e5c8f2908617220d36effe56. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QMFMG2324454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b15a2d308eb9dd7fc1d48b0006581188155cc6c1778b7a001150697304d13da. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QMFMG2324458.
Dis For the Project, Vol. 2 (Chopped & Screwed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32ba96d5a647cd7c1e0661a1a2d565ed38ea2c017fc716e58942430e81aec9ae. 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/QM4TX2417191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc88e9cab18794ebd273dfc5f2993885f194c2648c443a4bcdab861afbc2ffcc1. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZS7J2471809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x424a2bdf1907879193c07e5991b0432517525337d16455e31af6df0403d1ace0. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/QZS7J2465038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc501b17e033eb719367ec8029529885a883219a3418c28bf9228cd99a7f9eb28. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QMFME2435230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e42985f5af432293733409bdb0b128e2f2c0029dacf4bd9fcfa82c40e524f19. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QMFME2435233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde712044fbd781d6eb04c8bf401ba556ae0644763c9eb6023c2bb2075a86ac93. 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/QMFME2435238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab8b35eb18605b823c97688eac860ac1cb803512c10a787ea0dbee63429b7c8. 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/QZTAS2298704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8362071f742238c332d7af8f9d422f2bbd242fc5b43705bf56232b359ce9d14c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZTAS2298707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf6454351f3a02fd711a37c4c633173c8b55e82c00b45aea7c903bfd9f01593f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZTAS2298701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x447b7a6d218a6f82a67d5544de4c0a295c9b6a0e7bdbce457c12618f2c494f7b. 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/QZTAS2298709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6de23a5b30ab65ddef57c54a9e31fe7b9cfbe0762ec53678ea37cfcb2fe4f22b. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/QZTAS2298705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c55dd79f8faf59eeb7a28935ee791b371d13c7394536d866f4cc58c575c07d1. 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/QZTAS2298697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2904a709afb14367f811deb6c15e5479fa54b0388dd7012026ef257485061656. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZTAS2298698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9731a52c5c0c2596d40431e7e20aa0da0a9acd005b7bb63f0f8a186879519075. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZTAS2298703.
Contract Killer (feat. Crisis, Trizz, SirRealist & Hologram)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcce42c3778d65f6410cbcaca6769c1e41b5d6ed3b552fd0d7039fdccf218c18f. 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/QMFME2398590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcce42c3778d65f6410cbcaca6769c1e41b5d6ed3b552fd0d7039fdccf218c18f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QMFME2398590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x829950e37611dde4c6e4d74ec2672bba00c1dc5be340c85a4adfef3af9b71e2f. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QZTAS2298702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1be46d88b3bfba4331cba4ab4b1fd47fac0e0064cb6a853b9fec023c96287061. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QZTAS2298700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7451797513052e2053c4eb3360b0f98e2718e197b182ac51630f4a76ce8eb330. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/QZTAS2298706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1ed874cd329fd4beb087a7e7408264006d28e4818881ae6ed5a327293059135. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QZTAS2298708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x558b887fc70dcd4f2282565456ebbf4667897447268f64eb048239faff1b6a2a. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QZTAS2298699.