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 0x2846757ed911b6997a2273c5aba77e9080b9cdbbbe0b1a4968208ff57c1a141a. 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/f1c3259f-e530-4b35-9482-eb4d79084581.json and https://artists.proofprofile.net/proofs/artist/f1c3259f-e530-4b35-9482-eb4d79084581.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 0x4083efaf1a244aa9d91cb9be136448a51de230deed578a00c77199e57fbb528c. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T17:45:10Z), 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/UKZGC2204467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15b2aa8440bca5363bc7fda40fb61c219f9e9cd484530869c65b863d556e0a2a. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:35:41Z), 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/UKZGC2301366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5ac71008928ad915154ecb85f46171197f8dfab16ede80275f6d8521273b61b. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/UKZGC2302297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6ee570f3d88916c9762953e4c036d5b3f04c0976e1c27e3fc97d892c50d7da7. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/GX5MX2356746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa34069b2d7f41840bea0a8bc9357daac17a36fb62a1213612e7ac134b2c9da9f. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/USANG2441728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6b590238017bea653a23dfd04e8b8c7d45d211f9e13fafa6007cc57b657959b. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USANG2431336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdd5da2dfe94706c14eba378339b0f9515bc7b06bb438f3704817fd5e449cbc9. Chain 2 (Bitcoin): anchored in block 958882 (2026-07-20T15:37:29Z), 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/USANG2438176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8a8c3dc49ad46ea7a66a9ce8ed23223fdd60709ccf50a103afeadefc32240fa. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/UKZGC2410502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc666e766047b213bcf9ac49f34ceee4e853469800bf7d535bbac16de9789a5b. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/UKZGC2408832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67de8834b74971d783a2e2ec951aae2a452d608e38ddb31c5194ccb97cc91235. 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/QM3DF2401698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78086b7955f46c1b71721e1e804da357e9b11a3476306db5bc8b1e8b52b651e5. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/UKZGC2411244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4f84cd4afe4183716ff4a73349a6f6b1e909c5b571859cc0360a2482f173116. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/UKZGC2501016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1193baef6e815a4299eacb1e101856ae6a673cec291d5efc549eb3483dc2e7e6. 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/UKZGC2502156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2691a9245b4053d723ffde8045f665ceeba03ebe990cc252ec29a4a75dfad21. Chain 2 (Bitcoin): anchored in block 958724 (2026-07-19T11:19:01Z), 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/US3DF2527415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4755596a8714cb62fbaf1e0acff114a974ca1aaa7b33cfddbb58db2baf7bb856. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/UKZGC2503451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a0d9be19ded0416b955198037b496bc781c35345d5d1940de6a45ca163a18d8. 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/US3DF2583637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b157d6cb72cff3f67003a2545ddddf412b1f0f4962c85e309a13b826a743a42. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/UKZGC2506348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6da6620fb1dd2c5ba3cd3886f538ca932824643b8e5c2f64bfe6aa71f7fa2659. 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/UKZGC2506389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4785fba78b93aae23d9d84c7610403c48ea1d07a88f1c172c87a9523ef6310a2. 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/USANG2517789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa28273c84e424a1562c23f248efc13e80292be65f6730dd4baad74fa09fb094e. 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/UKZGC2408506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b7d3b57c46d265175f304bb7a811fa0ee512f4cde3809b435119d1fdcac4149. 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/UKZGC2402889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa28273c84e424a1562c23f248efc13e80292be65f6730dd4baad74fa09fb094e. 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/UKZGC2408506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1193baef6e815a4299eacb1e101856ae6a673cec291d5efc549eb3483dc2e7e6. 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/UKZGC2502156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ab3fe4192ff11634d429bc098ca0500c1f8c0c412767cc3f03c4d59e3fdf2b8. 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/UKZGC2502308.
pov: you went to japan to see the cherry blossoms.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4f84cd4afe4183716ff4a73349a6f6b1e909c5b571859cc0360a2482f173116. 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/UKZGC2501016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fc979d2ff2ffde0b7541d35f1199b00d217e24ab35c0989c62cbafd63e07600. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T08:40:19Z), 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/UKZGC2410315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3293d2470137133a354f737f741639b1a3242ec664b10dba4940eff2bdbea88f. 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/UKZGC2503880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc666e766047b213bcf9ac49f34ceee4e853469800bf7d535bbac16de9789a5b. 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/UKZGC2408832.