thumb|alt=two cups|Both common spellings of the name on a Starbucks Red Cup and clear cup Stephen or Steven is an English male first name. It is particularly significant to Christians, as it belonged
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 0xdc062406114879576870ac215c88d52bc03e3293b4e3721d5022fd609d625bd6. 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/89fa70cb-d087-4b8d-9ab8-03b99442d448.json and https://artists.proofprofile.net/proofs/artist/89fa70cb-d087-4b8d-9ab8-03b99442d448.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 0x2c1302f9c58827a4796f07946cba5827e1d8ca6017e5747c304affdbc49a344c. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/TCACM1633117.
Crossfire, Part II (feat. Talib Kweli & KillaGraham)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x189a4069e1d3369d0cde210ce7e37851c5ef6f9c7d7fb850477e1516045800ae. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCACR1674776.
Crossfire, Part III (Feat. Saba, Ravyn Lenae, The O'My's & J.P. Floyd)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47ce406ae95ee2de18e34d01d2270b87ab757abecf1cf683895daca3139dd666. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCACK1506268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x189a4069e1d3369d0cde210ce7e37851c5ef6f9c7d7fb850477e1516045800ae. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCACR1674776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x661b0762f0d21ccd03e670a24daf8dfee23390d28629371a2397f2da16ee3f44. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QM24S1700693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4997e3a916ad398429817d2a26fdaed07f9641d1a3d9f9011d5512c1e9bf11d4. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:04:04Z), 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/TCAEC1966627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6fc71675153eda8a55bc8ab2e4549337636633d60ff6e1918364dfa38bc9bb7. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/NLRD51632430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b46caac96ad7cd2cefca4fa9357f3867c7b3a5a4b382a61bc68825af94fe772. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:15:40Z), 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/NLRD51632477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc981ccc476b2907a003226aa90c3abb6f3a7f83895fd3762be4073ffc2028b32. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/NLRD51632476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f3bb22cb26ceb1494270fe15e66366d9e6121e08ee01493169068194dc2472c. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/NLRD51632481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57169cef410b247db259222562020aee8871b850631be67463ef46cdd20b0628. 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/NLRD51632482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x246a02c30f9bdf1684929eb954248a609d6afc044a44f6267fea2ff919997e4c. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/NLRD51632483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x076694772e7c320a2f5de0545769901884bca53804da50cc2e0a1f05140b2b67. 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/NLRD51632486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11d30b57162f7abf1920c3b43661ad264871c37a055b0cc5fef5b2ac201605ef. 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/GBKPL1790817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7f7f4cd070708e4711a9df606a764d2164c59701cbf8d11df2da04cf7b98f0f. 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/QMUY41700203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fb300fd776f70d8c0c602dc0aee6e4b07e431033557d8bca1b8ab15f2db9e88. 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/QZ5AB2111727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fb300fd776f70d8c0c602dc0aee6e4b07e431033557d8bca1b8ab15f2db9e88. 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/QZ5AB2111727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4ab086ac2d895e4b3c059d736012de380b51df37655b8a563f1524e008ffd2a. 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/CA6D21800026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47ce406ae95ee2de18e34d01d2270b87ab757abecf1cf683895daca3139dd666. 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/TCACK1506268.