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 0x6b1f2d0431d2c7838a3a7e70529b5fceaaedf1e729732c460791aa850ed14b79. 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/b6f00556-2780-4ed3-8099-5bbbe4895538.json and https://artists.proofprofile.net/proofs/artist/b6f00556-2780-4ed3-8099-5bbbe4895538.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 0xbd60a28058169ba207760efbb0fa535a00d1835b2dea52e79a7e203d031b5339. 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/QMDA72167679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14284ba4ce66eada860bbd82ea8b0d3719f5dc40a9df69bcfe380eafdf30f3b6. 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/QMDA72167681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e5d1b1080bdd4938de8e7b9d1df5549b15693a6942fd5a405b7f9801600bcc3. 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/QMDA72167682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89f7c2a65ab1bd5ec453f29c69d11719e58f17b562d427721fbe89ec4455444a. 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/QMDA72167683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b46f8f8593681378335f88305dd2c1671ba0fa2a0ddd5dd7155c4cacbe2413a. 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/QMDA72167687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d55434b0e6aa17afe1d0c8838ded52fa4586157dc67ee349d62a4c6456fff75. 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/DES562310827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a5a8386be1c4d693745259963fa0445c2ca44cbec9a02be4cb36c512a530cc7. Chain 2 (Bitcoin): anchored in block 959109 (2026-07-22T07:21:40Z), 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/DES562310829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfac45271af8af54bee133350b07a59af95dafed3ea32a48d0acdc0c2b927e91a. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:21:46Z), 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/DES562310830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f9312f41294c6ba01d7a1cc6700d342eec5213b64c56e61ab6714a8f05b6487. 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/QM5WW1501109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83cc1b243e50b8c1a17f0edb5c5bea1d6d0b7010717eaca406af21144fef0b5a. 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/QM5WW1501110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b0b6ac61787c8e57b281939fa61b2ef7d4aac2f615a20c1a697c622a741e793. 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/QM5WW1501111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c215297f14d326d18ea9e2d9edff8f006377fc79bf6e2588f3558d59f004b74. 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/QM5WW1501113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8a398638af3e92adec4ca1e3dc426dae2c0c897ed2954fbf3e6497ddbb662f8. 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/QM5WW1501115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ccad1c80e8a03eb8653e5d5ab990258c17bea2099cdd7a31eb84479094b5eb3. 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/QM5WW1501116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x309d0cf16a88edf4d4ca246bcf8939ac0db965a0e25ac4f573bc650235b1b8da. 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/QM5WW1500601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ac9dc77d7d74e97cda8f1b6314082a8ee3cef76c40f5811e32ac0e6a9bed898. 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/QM5WW1500507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4df2960eefb3f7118d8ed3e7554c83c964db958e083091e853aaea5c73432db6. 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/QM5WW1500508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f92e9a22aa4614b9961037313399ac99d9ee329686a7117d316b894e9238cc4. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:26:03Z), 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/USY252000550.
The Hanging (Hang Us All) Kris Dirksen Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x350d01e0274ba006367c2e939cf51bf475e1605bdb57968e04a620089f348daf. 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/TCACN1606172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad0f38aee8fdceca678c16c0bfbb1dc6e779a77ffe4b6ba8f1386efabe890a19. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/TCACN1606173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84c44484ba647c5b79334e6d16bcb46937f0cedfd0bb54fa45f6db040d73dcb9. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/TCACN1606174.
Smash...! Boom!...Bang...! Beat in Germany the 60s Anthology - Beat Battles