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 0x440fc052efc0f7d8bec45b945ba4690b7d640ad64f6f3298a1bb00673898c6ca. Chain 2 (Bitcoin): anchored in block 953709 (2026-06-14T23:31:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7ce8d58d-4b35-46e9-b845-dc9466015f83.json and https://artists.proofprofile.net/proofs/artist/7ce8d58d-4b35-46e9-b845-dc9466015f83.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 0x1e867c777766c92918f91d1dcb51a2362a8bf4b7e9b7af2ae828bd09341f9648. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:26:16Z), 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/QMQRB1400111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa01d6858adeaa21fbb70163015b2b593ed281d7f5098f4fe5d0a236732a49d04. 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/QMQRB1400112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97ea4214276ca8c3a1e8254d0f69e5cff14e4b2375c5489225e34b9333ef3311. 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/QMQRB1400115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3a14e8dd9a6ddb18af106809c33b8ef354b6dfd24fbeed092d0775cbcc218aa. 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/QMQRB1400116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4e447b8d18d0849e078e9f5ae803eabc3648e561a3bdabe91a24b91788ecbe4. 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/QMQRB1400118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x015b09956d66d337ecb99544e903fc46cdbf9dd41d616cb7442516c9ea51faae. 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/QMQRB1400119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa15308afca9823f9f91681d430adfa43e32b9652061ed5ba7f1e2504eac1e53d. 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/QMQRB1400121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb47d7989e33e0f08b53944624fdbf9caf8bc4b0a8adf32abbf461ea02a8dc520. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QMQRB1400113.
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 0xe865f47e476ebfdf254bfdc37c1455475c6e747c325ee9b420431eab2a366500. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QMQRB1400114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda05721a0862b61c8a2b4dc38d6c74a744d601131c1bc6e1df1a946a40371713. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/QMQRB1400117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ddf95ad6f68b0486cf245eaa5ed7b00c36f225cdbfafdc5955969a02d270544. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/QMQRB1400120.
I'm Just Sippin' On Monster, Thinkin' About Life
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1296da2e66c4e526a654456b4519bb5fe98bfbcc821d126a73a6012d8bd4a73a. 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/TCAAW1115030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5976f94508336af8e275e9e0e5569afaea4d90d4b8c5aa1348e414f4340640b9. 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/TCAAW1115033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9b4762c5a56d082c25899db6e432ff5a8f5580802d1eef9d9a9880d2cad9dc8. 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/TCAAW1115037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb91d0b191a5e616b329ee2c1a87d7f9ea48b9ee03e4014765e54f7133db0236. 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/TCAAW1115038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fd50ded3b2d4eeeab37ed5c98f86e58aa2d844fdea46c621b2d0e0ac985fa0f. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/TCAAW1115031.
Life Is Precious, and God, and the Bible
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8423239b86d03e0fe1d7c42d910eae3098550000502adb38639b70bad61c473. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/TCAAW1115032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb355e9a67748f1ce3bc5ee9716fab61446793bb7dada749e4eeed412adfc4f42. Chain 2 (Bitcoin): anchored in block 960191 (2026-07-30T01:51:26Z), 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/TCAAW1115034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x416769f3351487dc7407cace602821c9d6ae8d0f64c882c91de28ef87aa3f4c2. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/TCAAW1115035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5545a1b44e3990e518c4e1f3f529f9ec324ab3f05c6a0c9866e75b9c0673930. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/TCAAW1115039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37eeb68bf8320d1364b1b0466e8f083851149a3949a2c13f41398e2a33c3f0ed. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/TCAAW1115040.