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 0x18d6106b5d128bd86e989c5db5a359d1aa83bcc43ec25c1578bc3cc8e3d0334c. 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/fddc4ffe-e054-4383-95d8-afd7ce3ab60d.json and https://artists.proofprofile.net/proofs/artist/fddc4ffe-e054-4383-95d8-afd7ce3ab60d.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 0xaf039f22083e38c475230f184553c9e52a75a5a4c60c968d2f49480439491485. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/CACWV2081119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd97b5800f29195752dc37faefc4043bdc70411950f5a5ede9d9d9f1f6feeaf82. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/CAENV2046305.
On Love in Times of Quarantine - Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x723d6fbac497a2865f1c08f6ad3f665fd724c243064776fcd2f721903eee4484. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/CAENV2156060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x940d6169272531d3be74496fbfaa7665ac4c1c52022beea9b97c69e6c7672911. 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/CAGOO2194752.
On Love in Times of Quarantine (Maciej Sadowski Rework)
On Love in Times of Quarantine (Strings Version)
On Love in Times of Quarantine (Azido 88 Rework)
Under the Curve (Ross Christopher Rework)
Views from a Window (Reality Aside Rework)
Views from a Window (Reality Aside Version)
Incubation Symptoms (Francisco José Villaescusa Rework)
Incubation Symptoms (Hoffy Beats Rework)
Sketches of a Lockdown (Strings Version)
Sketches of a Lockdown (Raw Piano Version)
Sketches of a Lockdown (Byebyefish Rework)
Contact Tracing (Federico Vallerga Rework)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cb0fea6f354064e458390207d7dec6a2f70d1dc7e7d16dd7bd3dc5e88c87b64. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T17:22:39Z), 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/DKD3Z2110371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d7e90a7d9faaaab90312790c27ec4b9d8661cde65614598f2efafff07485d2. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T01:51:06Z), 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/DKD3Z2110168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x629efc10914ce1736eeed317caec49ec2c40cbeec64c755278dd16a3c396f424. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DKD3Z2109910.
Views from a Window - Reality Aside Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x971e047fef36ea5d2ec38a9bd3f639e1e6c21d6bd7d313944918c76b4686acf2. 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/DKD3Z2107633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x014f352c7565be967bd0000f4148abb48bbe99be37043894ebc026dca0bba030. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/CAHQJ2349296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x460ba7b0f1329436d4459e84943b4e0c17745176d8b7b0f4826f0bcf1b030a1c. 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/DKD3Z2107142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x664415499356489feb213cd068a2ef76d448a6cc905d47c1f85f6b1b2f9a3609. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T11:04:34Z), 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/DKD3Z2109930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b50cb0e9e40a21d349dfe701fd596b66e1d2b07d9bba8cc15a91fb75e187df6. 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/DKD3Z2109669.
One Last Freefall - Anticipatory Grief Lofi Version - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a0f8c9e09f86d7e166922fae712f73e4f390611c08a5e6920f5aa6d20e0b524. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DKD3Z0002979.
Avatar: The Last Airbender Suite (Ambient Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x940d6169272531d3be74496fbfaa7665ac4c1c52022beea9b97c69e6c7672911. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/CAGOO2194752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fe90ff16dd6faf98824d18b9a9d4925acb3086e1b939d02236750da3c4fbe25. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/GBRKQ2452141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x166d1af27920d2a5f0ee2a871031253b02f66c810637424a5d4cb15bbb96c3f6. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FR59R2463780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdac1a16f4c5e7482618a2a68767b845399bd6b48f9ae301cf2c8a7eb1af5dacc. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/FR59R2463782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd409450140e5ec6ee7168862f5d3a2b3b6c5846c3f89b32a94f04be48ebdb320. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/GBWUL2488235.
The Curious Case of Benjamin Button (Remix)
There Was a Time (The Curious Case of Benjamin Button) - DVSK Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0be393e014c144a8e1883df4ebc38aa2c9d3fef403c1fdc30e806c7cdd1f3960. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZWV32461950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a3cd20443c46e8767562712522487f2523da49e8ee17050ffd16d67400246c5. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:27:08Z), 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/QZZEC2478822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc376ee3f59a0c9a311ed961e2f98f13c3d998aa1c60cdbd1f50cbe841a06df6. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/QZWDE2569741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x132dbafbd2926f676cd45445b7cf0911458a65371e45083bde950506af4b08b2. 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/QZZEC2319563.