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 0xb05c4b295bfb98e0b44eb9791d3c5b096614f732ecb4959584ebe35b1a552f96. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7a1738ba-8578-4eda-b7dd-1e64a6c9dc54.json and https://artists.proofprofile.net/proofs/artist/7a1738ba-8578-4eda-b7dd-1e64a6c9dc54.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 0x2f36544471bde931b110c8db1a4db11a497b84f6c7593c983eb27894ef5b447b. 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/USDPK2000121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffbb582f29949cb5747dd9dec531fb94df06eb2d45ec8e318ee9cb51d3286de4. 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/QM24S1922947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15153083b944ec8d3452219cd7ba509352c2c633271d00f18e2eeda2969b0668. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QM24S1922948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f9207ee8e96ec8c986ed9ab0b8e632f8f52b07ceb319d55683c1d4d555324c6. 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/QM24S1922949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8fde68b50b70cd98ff3e4c88fbe6d251ca73e5233096cf1742318304b902868. 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/QM24S1922950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaceeef1d7731b251c55550c296f4f4731957b43f5f210b76cbd2d2d5328e234. 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/QM24S1922951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x558bace38e8bd23dc9272045a32c8cb387ad4c642d58dd47db161c6508a6ed42. 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/QM24S1922952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6fce843b3f68daa2a131ff03fc0eb7ae43a9204dfa2e8f2024275b1170ea3a3. 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/QM24S1922954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc49cd8148e74ea869a3a717ffc1cfb8631603f1779475ab2f0b887296a979829. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QM24S1922955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeecbe2da3cca45f89d0ea7338ccff75933f5bdea4e9ef2e958874f6177f7360. 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/QM24S1922956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44967e542c113931e6ae623368eaed02a2793c03e5c93a33739ca2b2dd7c15c8. 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/QM24S1922957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3d5c6d6910ef6151c27c8c03d779a6d39c76fd092498db0391176982a2ad9b1. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/QM24S1922953.
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 0x5eaf4614fa10ddc55059eac44da7a7f8a3f4f9d2629848714d0aa39f8f69c47d. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QM24S1922946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59dbc8c3900ef7652b9689aea9bbfef39049fd210080d8ee17d7853e11a214c6. 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/TCAJN2512269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53175b29112aedd9c1de041e0ad4075c63339ead9e62557668796aa9eefb29de. 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/QM24S2405416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9dd1fb5bd9566879ab1d4851903fcf9181f327afe1f4fccbe6e48a33fa8ead4. 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/TCAGO2295236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd5c249aff6f29509f00af87a02d2f3d431d46e87a589b06f2e5112be9f9813f. 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/TCAGN2260768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9be32f3f5b3ab229fd0895c4c037437e65cdbb923ae5333796e09e91a05e1a1. 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/QM24S2103294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf5e123be970314ed560ffe79fbda676a3e341f01320c55d9e0a37e86ae6c7d8. 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/TCADG1741760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x816eff02bfaf1704592f09e87e389ba1afb1bf0e9acec46c2fc96d1db9fae630. 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/TCADB1773932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe521439aad8c00fe479ab2cc528493f34b968f8219aebed2953fb02647c40fac. 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/TCACJ1561000.
Stache Box Villain, Pt. 2 (feat. Hugh Augustine)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0e58570f17a7dff5cd62496c8e5a8b7b4851c375f18b5af6a45942e1c842779. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TCACJ1561005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x396cb4ef1af733f2d8ad3a40fbbbc6a9a5b8ad4a063a42992b5d9acf0305be38. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCACJ1561007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b38e1dc4d6eb026a4e06f4347a556aac635c2d238a435bb9e8b177710bb7faf. 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/TCACJ1561009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd487369754756848e4189e999549cf38242b16ff9c664ec2c0e93c450d3b1a52. 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/TCACJ1561010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c3fe036ead7a8b8c84671b8c8d3b470713dcf8d555291417fb8be403173bae8. 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/TCACJ1561013.
Slow Motion (feat. Ray Wright & Rasul Shabazz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6acb5a3a1a6e0e7d8b7b9d05571ed93ac00c124c8720c68fa42930e3202ff900. 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/TCACJ1561014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e631a5e3f6ebd9e6fd20147eca838d8da08c3bf96390efc7ef1b23e9c0adf6a. Chain 2 (Bitcoin): anchored in block 960191 (2026-07-30T01:51:26Z), 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/TCACJ1560983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe86f7d8417fec551d0bcde3acb7205f9b538b0600a14d9a8a7bb64bc77a9a5e2. 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/US25X1088181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9184a0f9a4fc7ee40ca682125741106c730c2e78851734fcf631f1b3ce7daea3. 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/US25X1088186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca41b1e8fe8c0a93677372e6f8a382f5af68ebcb67e1a5403649c5b0577e4445. 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/QM24S2107126.