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 0x0036d81a5895bf02d22be9bf84d53553553780aa09880a9dd11311501c0fb5ed. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/52250b4c-c292-489d-9ec3-08b47336f76a.json and https://artists.proofprofile.net/proofs/artist/52250b4c-c292-489d-9ec3-08b47336f76a.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 0x46c275db63a5ab2dd5bcc9f4d5e462451a24050bf945c3fc11b08a0af9ee356d. 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/GBMFU0600043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6929f5d20c4f7d9072a2f049bf2682744362029ae3404577cead20799bb13a1. 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/GBMFU0600180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35c386494b02ac792c40d02a7aa649e40417eca032a77e429a9c957dbb6db2d3. 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/GBMFU0600464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac276351e307cf3bf084fd3eb19073e75700574b5ab9952534ce12f4374ea275. 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/GBMFU0600304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf54b0a3913c060f74842c7dd2da743e3de5fdb1217ac3c4c379f9453f070e6b6. 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/GBMFU0600247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f340481a3e633c5c6204f54458432b3451fbcee2ae4ecaac6e5a8bb112b7a3a. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBMFU0600251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63036b242f57eebb3797ee124a6a5f7b204cd8d7a624b822aaedcac82f0131d5. 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/GBMFU0600226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2377b9b25ca97d5972e1385231ea266110f2a98da4c0be239d9361911baffdb8. 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/GBMFU0600099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d71df50d4ae8eb9b151643f734679f2208d882c039cfcd18f62be580ec201c6. 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/GBMFU0600085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29b8fad1268c694bc630ba5bd3556d845eef46774ed5a38940394b853b94324b. 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/GBMFU0600145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc4ed1cbd862a4c489dca0bcca6d58a40622052a7555813097b0f859b28ae25f. 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/GBMFU0600413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x369343bc7896459734f15d60a4922b3462c36a35c024106a08c811c1eb32278d. 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/GBBLY2205768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b16e7dcbc0a613f255eb1a4f8edeb5174e50f1e178cd25914f94f837506185e. 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/GBBLY2205779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a1a5d09defc138c883da8eb1df1efc6a1b09a1be133ed43239d02ba15bfc639. 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/GBMFU0600262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99c3d23dbbadda67ebc224a17201edd04384148429c919cef621a97af30875d6. 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/GBWCJ1400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29b8fad1268c694bc630ba5bd3556d845eef46774ed5a38940394b853b94324b. 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/GBMFU0600145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d297e7fb8cb31694e07dd85ccc8c9dc85dc5f42c6328d4feec7746d9b88daef. 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/GBWCJ0800060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7130f097924f6390710a3a6aa65d6bf69dec9651a79f8aa44fb4948eb43d663f. 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/GBWCJ0800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x219d7b14e744cdf5d1bb0fe2fcbed97ecd1e471098471d6d8d370b06010676fb. 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/GBWCJ0800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dffedb465df3b633dbeae3daec361f3bbeaab35013c9ff908eba3c8d035271b. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBWCJ0800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc5dcb447207703d6e67fec9c9d13ad1bcd06e0cd60747cfe2809d6c62ca087f. 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/GBWCJ0800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e3376818b0baedcb433866e0768f166d9ab2202fd00f000cb976f7a2331ee37. 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/GBWCJ0800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0c2fb20675f218aa8e9d8fcc2f7c516d4b729a95e737d700f413ce9198350be. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBWCJ0800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbff99e8ca8668d9ecafd9f4de13644153b044e5b96d6a0a848a1fe2bf69277f. 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/GBWCJ0800012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63a93860afbbd079e944c5a0924737521aed40ecbf4228f43f2abcb3847b6244. 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/GBWCJ0800013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc811663f4afc34c579cec7a8fa56988904af32d52fe8f1592bba64339f062f5e. 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/GBWCJ0800016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf4a63c13ea8af44f8ee6760a803f995c22d37e802e766d2bc7d27c1b2869657. 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/GBWCJ0800018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4684d40adf43ed44e75ffb3b9247bda1d70d642743170286a864fa5df332313. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBWCJ0800046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ecfc923eedd895d0a9dc332254d3ea7ee4a222e8ff44b8d9246885472953be5. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBWCJ0800048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8235e7cbc72f03b9da4d088a4387589a3cb46d01406ee9811ec630d0c0604ee0. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBWCJ0800050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba24183be3069cd280f279fa340984ba4aa273c9c78f8c3ad29ca8881a9ede12. 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/GBWCJ0800055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x827be837d586f93a8336b2d80c46a16d8e22e3919ad9804bd105f4992bbbc00d. 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/GBMFU0600164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x688df98374910c6d5f23b584c7550b8951255775cbd76b2d08c35824822819cc. 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/GBMFU0600137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58f7c377cf250d5918c04982d58631bd1398341a4cd9ee5d3be97a6c445712d8. 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/GBMFU0600153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c08bf7798b2b952427a33ce847bcc9b3fbff8d5eb701fa1344ca849a8a63d46. 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/GBMFU0600142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x198d7a6dd626d29c7e458aa506bbd6089ca1d24bcf2a633412670b7e3f65c9a8. 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/GBMFU0600165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86e713a0aa8554991d1ea2c3db3762c9e5bf4a01146e1ab31f66d4c759b20b6e. 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/GBMFU0600161.
I Don't Suppose I'll Get A Second Chance
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48a4f9c23218fe431411455fd683eb384fc8d46e5a63f329c2177ca5964794df. 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/GBMFU0600150.