1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x90abed6f54eb3c871b569c5c9d83cb72883a3f110da380c53c4870f568d7fb2f. 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/d7ce2ccd-b4ca-47b6-a99e-8f27d751a157.json and https://artists.proofprofile.net/proofs/artist/d7ce2ccd-b4ca-47b6-a99e-8f27d751a157.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 → block OTSBitcoinBlock must exist at that height 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 0x3bfc328ff9ef725682ceceecc3a9f295ad04249034c5accf53748bef067559b5. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/UKZGC2408177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fcd97943d8fdd7b29b3b728c3c9d7f4d3b0a8113d29ff8ca974f6ff43743d58. 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/UKZGC2410510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf20ab792bb567d5b7f77651ea5a401a162aac572c3ac08d91ac20e80528bc06. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/UKZGC2410518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba56011d44325f769467740570e6cbd1f7c246afda2b1099068456819a12b9b7. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/UKZGC2411135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8961bf38be3386ca133e9700ea68337854bd4bfbd628e0465018dfcd2a6d6ac. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/UKZGC2411158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x940098f6b55c933d5ad244ef7da734130b63d34ac0f58f649f5c1a215c93a6c9. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/UKZGC2411278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a10e8ea315ec4055e063b831ea3c63c1f637486dc731861adfa87ffb084d35d. 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/UKZGC2501036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x755f0b3792b6e9a2bd20a1c458c49a80f5b2a1f99132ce8bb004109640c9250f. 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/UKZGC2501020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd28a59525bd81e10ecbea22dd21aabcbe26507e9e99f9e9a59255c8c06dabd58. 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/UKZGC2501048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aa16beeb9f993cd5acc37c53205a2deb3b348e32404cdda579c6dfe2a65eab3. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:56:24Z), 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/UKZGC2503459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a97806fc05ed0e67e2e8465c61d169e243e9065b556e4b4b713210c6bbf3f7. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/UKZGC2504372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27cea6acc1ac5683c78d2e44f5c4e519f33ca41053597ea41317770bf8c53933. 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/FR9W12429322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf2b219aebad6808f1ab0fc94f9ea3472f96fa570be7bbc2a1a83c447bd1be7f. 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/UKZGC2411284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd28a59525bd81e10ecbea22dd21aabcbe26507e9e99f9e9a59255c8c06dabd58. 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/UKZGC2501048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00672a270fd8ea64eadabebb7b5c869287c306e1a8366364627a6d48e8a50743. 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/UKZGC2502304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29ad5313d6fc546a1e48a57f83fa24c0c42a5fb392fa392cbeb3e0fa85b9d694. 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/UKZGC2502315.
pov: you went to japan to see the cherry blossoms.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x755f0b3792b6e9a2bd20a1c458c49a80f5b2a1f99132ce8bb004109640c9250f. 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/UKZGC2501020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a10e8ea315ec4055e063b831ea3c63c1f637486dc731861adfa87ffb084d35d. 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/UKZGC2501036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba56011d44325f769467740570e6cbd1f7c246afda2b1099068456819a12b9b7. 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/UKZGC2411135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8961bf38be3386ca133e9700ea68337854bd4bfbd628e0465018dfcd2a6d6ac. 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/UKZGC2411158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bfc328ff9ef725682ceceecc3a9f295ad04249034c5accf53748bef067559b5. 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/UKZGC2408177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe376470494ae040c250a2cdfd75ca8be2637106e7ebf3c39f29136b18e312b91. 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/UKZGC2501330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x940098f6b55c933d5ad244ef7da734130b63d34ac0f58f649f5c1a215c93a6c9. 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/UKZGC2411278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bce539a128c314656b21380c88307a9f89e651b57bee2e4ea95d6045d3b0611. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/UKZGC2503924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c28230a0cff20dacabc7c8eb0477b5d960c4893acc1c45baffe1b65438e9878. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/UKZGC2503881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9983bce3a0c596a2b98d1082055e59f1fd28e3bfaa1bbe5a292a786901e1ab73. 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/UKZGC2503923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeccf992181708eaa8e845394f1216ae74db17e8b5eccce01573c48da612f57fd. 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/UKZGC2410506.