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 0x1bdfd4cb4a565fb2e6938fe7f54dc205a4a07bf91ef6f0be6a1aef938435d74c. 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/569dc7a0-1165-45f5-ba1f-4a8f7b3fdc88.json and https://artists.proofprofile.net/proofs/artist/569dc7a0-1165-45f5-ba1f-4a8f7b3fdc88.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
What If (feat. nothhingspecial) [Radio Edit]
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 0x711e4eb99f998a860a66d95736158b6cdd51228a35002963ccf3522aa4d7f40f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DELI52404160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eaa74b39a23e466350f1c5e473cba49e110a3aca75fa1d43e7281aee7ccfaeb. 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/DELI52404159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eaa74b39a23e466350f1c5e473cba49e110a3aca75fa1d43e7281aee7ccfaeb. 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/DELI52404159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x711e4eb99f998a860a66d95736158b6cdd51228a35002963ccf3522aa4d7f40f. 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/DELI52404160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecc4c3b8458bee9f2b688d92eb31624d821deea68005aae6d87f946660d77ca3. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DELI52404163.
Everybody Knows - Markus Acher Vocal Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x292724f6d63702133b7dca6e577d6fec27507f0af87b0f34b634b636db860a8b. 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/DEW282200029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa84a345e9db7b663ae062e5c9015eb285fcafa60c898ca3c13e5d1ac6ffbd4c0. 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/DEW282200034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62184b290646785c664f6b19fcf5be2fa97fcf3d74ba47b148babe7057668393. 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/DEW282200030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc28aecde33e11f2a09784f5542f38d1fb12d0510b6061a32873cc81c1367d08a. 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/DEW282200032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebb52bcac9408c60d42dd76596db525a611d12970d16cd24f39524ca5db5f682. 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/DEW282200028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc759091e5d0589c6ec927b58990aae963c6b015b15e56ff6b0df50db85ff2351. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:43:41Z), 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/DEW282200017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe666fd5c73eb9c1be2c3e92a454957ddaa1111836f5c9039e762bde5265d2848. 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/DEX262568109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebb52bcac9408c60d42dd76596db525a611d12970d16cd24f39524ca5db5f682. 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/DEW282200028.
Everybody Knows - Markus Acher Vocal Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea57b6e27a78ce4742b85b56017a93b6e57da367841e7b08ffef46e2e13ed054. 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/DEW282100024.
The Corpse of a Frozen Flower (Eiko Ishibashi Vocal Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd445f12693cc4a9915bc41407b119d9cccc26ae5a33ad98caa739a79da13f19. 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/DEW282200001.
Always Something (Indra Dunis Vocal Edit)
Always Something - Indra Dunis Vocal Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2b064a54f95f417db8fb11d831a789c7e9d66a9ff7f54516d0ddade6621085e. 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/DEW282100025.
Everybody Knows (Markus Acher Vocal Edit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea57b6e27a78ce4742b85b56017a93b6e57da367841e7b08ffef46e2e13ed054. 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/DEW282100024.
Free/Future/Music (Altin Village & Mine Mixtape - Volume 1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa25b676d36a80c2df53e96c8433a1633b7853c59427723be28308eeec1d67231. 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/DEX262568102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f8135c951c7315e9aaf8a1719437ff9b0c95d58dba940602e80dd6b85a4277f. 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/DEX262568108.