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 0xaaf711bf051e038285f1c5ec858c6e5db3a35b600c9677df44cd43cac63b4c6a. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/89bc6f5f-fe1e-41e2-8d66-6d0fdff964bc.json and https://artists.proofprofile.net/proofs/artist/89bc6f5f-fe1e-41e2-8d66-6d0fdff964bc.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 0x89faab6f0ea3b77414330167766f448333934a1d43e4054f1ba4737887ee4ef8. 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/QZTBA2274108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea7985e3b4ef466dd98fc91978ecb060b80010e28bec391a11a3411d2a844010. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QZTBA2274102.
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 0xe00c835661fa169742001091ae0369119bc6ccee33daf37dc2fbfbdae982a088. Chain 2 (Bitcoin): anchored in block 960339 (2026-07-31T03:13:37Z), 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/QZTBA2274104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x461c3edc08850be1b7b80a94821da7883a0293a49cb4b68bbe18cdb653030840. 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/QZTBA2274107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1db401f388bde441c9e95ff27560a4e35756e009a424ed7adf744de99315840e. 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/QZES62101414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x044a791ac62d51adeb533cd007e3295803966eb14a1a5d108f9ff2e6256eab07. 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/QZES62101415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf64d7a177ef4a805dc69f2ef3834b779bc0a213a7e86ce1fce63ebce83f7c9d1. 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/QZES62184626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87128265b358fc6d4ac3b1a2a9a655b2658b933deb3cb9e8d6eca9c0bb172de3. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/QZES52184437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb56416703a09c654a5cb3b3f3a520c8ffd75dedc25124893f2f29f34551e1157. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/QZES62101416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5cf550218c3d91af90a90d4f8a7d2bf934d78737148376804dfba9518e816c4. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/QZES62101417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc170d7dd9c174dc16683abacb19fd52aa72c16e9d00cb341c98c0235063ef33b. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/QZES62184625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54861763d2ba45a90346441e6bc03c1e447b56b1625e1ee125de3e6498fa1c12. 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/QZ4JJ1843910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52876c4afd207dadf5c6268404f98705e9adeda4e6989451ff5a3b1da514acad. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZ4JJ1843919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c9dfc2150cb242d1c8e3b947cf30b932aa1533e6e467847948e59a5ab9123c2. 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/QZ4JJ1843909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72f38cebec8a453820b97f264ff154eef6b7203ebf44157cb4de04a5272e22ca. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/QZ4JJ1843911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2956d58f30450a6ef16caa7947ffc14c4e11e5a8ceef3377fdbf688b366642df. 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/QZ4JJ1843912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2a25a6b16c820531f88f9aa0e70e85a489486fea90da4e9b16e65e3c36fe852. 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/CA5KR2231827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x108724bf414f4d8855d5b705572bf6764b1e20acfa33798aeedc9bfbb2ff588d. 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/CA5KR2335593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89b42a4f0ff0fe0bce0d588fd0b7e2dec57a3d5295ea2f24298bebe900203623. 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/CA5KR2231833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d61a3ebb4c1c915c55af7e84a0b6e0894a9ac17f186b361b6b134ffabc55ba1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/CAHQJ1883740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9865f9b237ae9432259ba01cc392956dffefc407139583a77d65d6f9df6e9962. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-07T15:15:30Z), 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/QZK6P2199235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57d6e86e212aa4ff58122645a9ac90283116139e4c124d36cfe73946535cc975. 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/QZK6P1921753.
Infinitry Mobbin' (ChopNotSlop) [feat. Lil 2 Dow]
Addie Calipari: The Trilogy (ChopNotSlop Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8b934e7f605277262b02bbf168dc9a511da17f06b7b3b5b6f2884472604ab22. 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/QZHN32048999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b4047f7f1e3a1ad07222e4abbd606308fcf5a73d69cba98c208c7bf03ea8831. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/QZK6P2199250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bb82d9e8ed889c15c02631d135f5e91a3f5b80e5771a4a7c2fcd4fb3f4bcf8d. 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/QZK6P2199248.