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 0x1fd9bd31fbea26cb59af98bbafe8759ea082f92cec7101fc3106d0c8b0a65a48. 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/22b5c00f-3672-40a2-98f4-2d3fea517b84.json and https://artists.proofprofile.net/proofs/artist/22b5c00f-3672-40a2-98f4-2d3fea517b84.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 0x0e118a875e5c4375938bd1c7053570df1ce30c3fdfd34a2a6b2ea578df3522eb. 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/USUYG1083584.
Rap Game, Vol. 2 (The Takeover) [Frank White Presents the Streets Headbangerz]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb28a00659d583bd6bb101e99b1e80a5f482e0e0d272e551e17845cd98941c182. 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/FR6V82658958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcea2631b1052a5b289285d406968031a4b2deec2d9e6dde063ec85956382365b. 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/FR6V82658959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde0c269b8791084b66a2f0ad919b8e2b36759ea8acbeedd25cb222e82ebbafe9. 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/TCAEL1964982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa663916f440cee1aef7cb410387f130363b3b0527a84a3b9ce65bb11472d7250. 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/USUYG1103710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f7530f15da4774d50f65b87919ab001edae484176f38435686fcb485f9f247c. 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/FR5R00903341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x730654cf570b430947566b0a50056a8551a1ebedb36585f57bebfbdc599bdf8f. 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/USUYG1056956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8e40f040f4f6b7bf0873c07d384543ca60fb082af525872dfd29f31fabf289c. 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/TCABQ1325738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16303077c2747c18af2c10076ad88e75af6639eb82bb7180309d0613a939fb56. 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/FR5R00904437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad658fd94e6b024ca6198f6d01ee93d3fa84ef7da836bfae7509f8c09f5c48da. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USUYG1083419.
On My Set (Remix) [feat. Yg, Big Quis & Hunyae]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd260317e04a77ee23d7ea64531bc87ba4c72d01e7f8b6784be2c3ce3a3685d8e. 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/TCACD1553392.
S.R.I.P. (feat. YG, Young Jeezy & Chris Brown)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73ff23cf0f4df4edade8278ecaff51c1b07309cb464de0177b2ce7eca9c132e0. 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/FR5R00904296.
S.R.I.P. 2014 (feat. YG, Young Jeezy & Chris Brown)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3a46f4072ac82be751eb8f21b1d4fbbe7ae3f7c5ddd70009fef1d24f0ab6f24. 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/FR5R00903445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe86ee6f2123df3971c1d678e64f2099902e30d00149b5faa58bdb78d25c21cc1. 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/USUYG1102195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e27230083ffe0f4f829fff882ece8426e2312fca14f83848cf5a944ac743ce9. 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/USJ3V1215837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75ad0c3ae6dddc57f5511ee5fad8523f512fc7b67f65f5ec9a176ff0ea644537. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/TCACE1570713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34706c7877cda8c0e5a88e602593c5af4b6708558a48d2c2d5333e0c8e1d559d. 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/FR5R00903338.
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
Next B*tch (feat. YG & Doughboyz Cash Out)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c7f962e7628f9832f7af976f496c3e558333ae70e5246022936814c9271e63d. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/FR5R00903342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb84dab56bd915e667a6577ffc11ee525d6b6fc47eefe2cd719d8058413e4370e. 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/TCABQ1325769.