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 0x9b18a21f4cb8a40adf8521a6c922837d99106c6678a644b51ba7f3e1ff9d7dbb. 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/fe5740bd-5969-489a-a66d-0180568d7ad2.json and https://artists.proofprofile.net/proofs/artist/fe5740bd-5969-489a-a66d-0180568d7ad2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
How to Slowly Be Replaced by Pixels (DIY Tutorial)
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 0xd953c092a8f46a3d97d55204ebdc258c4bddd1e393f6c4a57e7e8ebad190f39b. 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/QMPKX1796189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa06cc4fcaba333a5caf3fc64da3c265af48d0aeaecb6fa73851c121c61a62b50. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZB4J1839678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e6df4ddfd38d8b5a1864685a7d94ae47c37e8dae18a21c1ffd3aad2130d5525. 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/QZB4J1839679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04368b7d23f19f7ae0407beb314dd017263ed97898c3b63ccc7923bcc441eed5. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZB4J1839680.
You Really Want Those Ice Cubes, Don't You?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87e610748d85b7a2ad496f177638021e92e8a935ca78f9c2f6ce133cc03b4605. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZB4J1839681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4b381613e1aa733a1d6fd7faecc17e5250a759112b0be3477a8b82dea5fd0e6. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZB4J1839692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93ca06b4cd8fc7b87bb5b06259af4da8027bccaabd0adfe51c418ec37ef9c5f2. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZES91972229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5206646f21531968b17829a5565c879ddcea2ce45e3dd8aed96e9c493fd4004e. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/QZES91972230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78b05532538423772f8c88d064d342c6bccd0bbc6c8a5852abd4aa2af1361f39. 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/QZES91972231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4d4d9b48ddb18e347c18fc2c42c66ace43a74f4fb0f8dbc92b227df68fff385. 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/QZES91972232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf00d9e745b8d7b6cd83cb1256d8ec5e5d0a7990b9ff66031ce67a61dc4c1bbf9. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QZES91972236.
It Took Two Months to Set Up This Psychiatrist Appointment
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x711f4f027486df26ea640e25b72df0261c4369f4d6537509fa48e8aef99b9f08. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/QZK6N2031934.
Do You Wanna Feel a Little Pain Forever or a Lot of Pain Real Fast?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa57e68326e67ce309192d9000afa739822d090137a719aca00aa86d8cd9ebfda. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZK6N2031944.
L'appel Du Vide. Remixed: Two: Pink Limb Boogaloo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6ee9e93a50d65df046f4bf51c9aae3bfd653b1d6ab208b336b16efb61574625. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:32:49Z), 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/QZFZ52122543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc5417b27481c3d0baf536c15fdecdbeefb71d8f8f1f986aaf9501e310735e23. 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/QZFZ52122544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x476fea87302514c5d3bd3e3c0784f9f88446bd4d6698b69530feef1e4d4df7c7. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/QZFZ52122545.
megashark vs. another, bigger, sadder, megashark
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4074533a1f1f9b162eeda52d3c802215fd92b5de6c04336eb675c95b5d8249d5. 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/QZFZ52122548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccdf2e6a6161d32e8884494caa4a4544119777b6d5cef83fb1c8aeebbb299f43. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:54:18Z), 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/QZFZ52122550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc48c4efe8e6d2eaf4732a460aee93ef7f30fcb6d1231a2f49ed3e572e1fb3d2b. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/QZFZ52122551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdac8f9ef31cdc4516621cb14fbf1dc4e4db2b94d036eae748469b5630e2dd92a. 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/QZFZ52122552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x214e6e6bfbb737d0b8b946aa32d9adb60d8b3f5c16b2a18c5b2b53ef027d9af5. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T11:23:17Z), 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/QZFZ52122553.