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 0x316979a9db8c3e67f97fc6e72a4ecbef6c1dfbdc151354d454c0edc3782b6e00. 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/666ffd8d-bbe2-4fa7-8879-01f577368af9.json and https://artists.proofprofile.net/proofs/artist/666ffd8d-bbe2-4fa7-8879-01f577368af9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Black Is the Color of My True Love's Hair
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 0x09928c1bf2c2a4b6888e27b0feca9b808bcffb808da0b0122b2f72f7299e8a1f. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/USHM81976203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1508508d7458765c546a6911d12f7e949eb6402a634cd592137d4e7dc01c1bc1. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZES52045463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0b0198b2b1189de902a7f43703d0ed4ebe354b2894dcc13bbb7aa3742788b42. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QZES52045465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c046e48d2f284a5a40f9bac18d419428eca0e5a1e752d7146599312a024f3f4. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QZES52045466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f75da19ade7fe07df9bc9a0faa8ae0030abbca9d6e97ed37340f3e452503a8b. 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/QZES72099105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41e9b78974bef19025417243114edf0711742680f5d481231e0c946dda7c7ca3. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:06:27Z), 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/QZES72099107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x185ea4638b3eb75341be2ce1e2afa2932beb4164ce79396c9951a836bf713222. 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/QZES72099109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70c44eb9889b9878237710a0b730a2a4ed8bb56b8044c75758b542003e09821b. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/QZK6F2041996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a62ac3c048737a6b59538731df834ac4252a6cdc9b6f39e09c1904f6b05498e. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/QZK6F2041997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7750f8739ab3219bc7b6bf85fb094e5434cdff10994d5af5d4eea928c271ec45. 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/QZK6F2041998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf471bac4e613a709c7af2dcb417addcafc0ae4414b50b60d683f583b9e41d0c4. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/SE6TI2032486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4762ddefbd786bafe388d4a706a36dffaa169262b316c59bb6ccb94a8e69bad. 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/AUMEV2157881.
Starless Night (Classical Guitar Version)
Lament for a King (Classical Guitar Version)
Lament for a King - Classical Guitar Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b813d6982b883be75f02b905bb4a85a27362fff46032ba0e86e4e23cdcb222. 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/AUMEV2168068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba14a9691b4540f20c72dbdd9ca142c97bbf91267be3b2eb138f69aef75f80e4. 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/SE6I32131917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2b08cc86619ca5e13f879590458c80e31c4bbbcc9e1617abe57294fb60a82a2. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZHN61987674.
Black Is The Color Of My True Love's Hair (Classical Guitar Version)
Black Is The Color Of My True Love's Hair - Classical Guitar Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0637dd83b9e62259ec8349af7ff14afebdf840488038fa07afdb5bfe0d96881a. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/SE5BU2220514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7a5e46d94561eaa4e777f552534bb6a2eebb3180c3da35e4a64295c950c4320. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/SE5BU2294056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf08c7adbc30b6d7c4a20dfc164ffee354e5aeb2b21b52e14643b4beb7e3238fe. 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/AUMEV2211141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x764dda473b59aa0a7ee85cf0b1aa71aef1d711637f03c5843afffaab10e6cc47. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/SE6I32206936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61d4bd3bebd4a38c114efc674e1422eaea64bff72ad6c55f2e7405c984007544. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZN882220771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5e01e5d59ddd9881e09e74e8abd49caa53863ce2c1af7a88d2de15bea87694d. 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/SE6I32212095.
Extremely Rare, But Not Unheard Of (Cello & Guitar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2e4d56d4ff45ef271a8574fbcacac5c4a560edd989a2e16106b97a3113eb082. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/SE6XW2260890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc08c29fb64d43f964785e03ba2d06c470e1dc76be043257a061cd6c065faf851. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/AUMEV2272602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc111a1097652b622c1b4670df6d50fa48aa05b8aa2cdf2f9bee1a62a81362462. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:01:09Z), 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/AUGBT2212343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77256bb3e2a3240ae28cddc06d296b8d7aa392a0ad915d6bb273e9ee76be2213. 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/SE66N2224884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1f452628d69c367f4b8d5f4578abaf007b7ef4c085ce4fa661a8e18520fa176. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/SE66N2243018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43782c84e7a0211ec1df3b56c3c734be9c59274cff3f107feab132b9342b4e93. 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/AUGBT2235106.
Moonlight Cove (Violin & Guitar Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa99c9d714a6f6227977178fbbd4861a54396dad0bda5f6e7e2c9b92d0f4eeb61. 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/SE6QE2306748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c080b09ecd8b363d0a26849912b8c4d896f5d70189c53bbd5f006f5cb5ff934. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/SE6QE2306752.
It's Ok To Cry Sometimes - Classical Guitar