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 0xea04c7539ddeebf5390a404a64d716bc8b4745b173b49baf6b5aec26365415ed. 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/01eed433-868a-4d79-8579-f4463d44055e.json and https://artists.proofprofile.net/proofs/artist/01eed433-868a-4d79-8579-f4463d44055e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Family (Blended Babies Remix) [feat. Chance the Rapper & Vic Mensa]
See the World (feat. Asher Roth, Chuck Inglish, & ZZ Ward) - Single
Sayin' whatever (feat. Asher Roth & Buddy)
So Slow (feat. Anderson .Paak & King Chip)
So Slow (feat. Anderson .Paak, King Chip)
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 0x3cfea85fdec6624e2cdcffa063d854172526eff218443c8fd9e2b650b452ab77. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/USA2P1505798.
Something for Nothin (feat. Coyle Girelli)
Nearly Blind (Ahh Ahh Ahh) [feat. Jonathan Chapman]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad72a74aaa04416122ae7d391d05d083b88962e2dd81de50cde0e532988530e7. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/TCACO1673586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd13dc7a6cd300513ea02ef76a0a2c51fcc411b7fa10274ee926626d6cea584af. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCACO1673587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09c30f5a8de39ddcf03fa85d6d15b6f8ef81b702676ef13c66b5c1be5c27d9db. 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/USQY51616829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfe27b753fc692e6a14514cdde1d32611f16b8b1905b0a77ecfe76acb31612f3. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USQY51616830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4bad5989580f8692355198a39ff83cbf456c7783724e2dfd6aa3954c9f1bbef. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/USQY51616828.
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 0x54f805aaeaa0c0e1f4ff510faf8e2d72f0580ffeece39bb2fdc0564395444a2b. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USQY51616831.
Remember Who Vouched (Remix) [feat. Finding Novyon]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f9eb24292a8f0d336a10c331221eda22a5f9ccaab109b928ee7346ca7b4eca9. 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/TCACY1733613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffd4a7c3d703f06ea427ffb003f26cc2a47d943ef38fdb48509e3b95c3358817. 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/TCACY1733617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe286196a2db0dcffbcfd2ba5ac19438f123fcd938b1549a052e01efca4c63be6. 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/TCACY1733653.
Beautiful Girl (feat. Coyle Girelli & Jared Tankel)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6be474ce8cb577e30b77d6f481132ec5c65b84a9baecfd5352f9cef94c084637. 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/TCACY1733663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68b9442ea46af48c2bbbbf2e7cadccd962158a12a718cd40c60aeeb32f3bba90. 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/TCACY1733667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25482c453577a03807d682cfb224d2e3d85c0875f9b54cb4aa02f658b5f2ac67. Chain 2 (Bitcoin): anchored in block 959138 (2026-07-22T16:53:26Z), 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/TCACY1733651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1391a0107d1799252d7e369abf3b4954140d960ea829ba02af20286a8b260448. 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/TCACY1733259.
Broken (feat. Jonathan Chapman & Donny Pierro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a2c969942eaec67608a77b0186b2172a3cc8bca21ad16174c4356ad0264903e. 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/TCACY1733646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd41a3979ef13466a4dc7838be025a3ef97697b2f7aee4b33217378c5095c4b5d. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/TCACY1733657.
Girlfriend (feat. Aaron Reid & Todd Simon)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x177120cb1a9174c25ab1594c36a20331d00ff64c2ea13d0856eae777312b3497. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/TCACY1733668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa568d6533b6a1471f29a9bc1de536cd5347872f4c7208422ce0465984879da23. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/TCADL1812634.