The Nimda virus is a malicious file-infecting computer worm. The first released advisory about this threat (worm) was released on September 18, 2001. Nimda affected both user workstations (clients)
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 0xef96d313c96cfacd1c32cfb12011fff5a5b48ece629e37767d1c6d478060e42a. 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/57ed2212-6cb1-4e8d-a5a7-a3226af25708.json and https://artists.proofprofile.net/proofs/artist/57ed2212-6cb1-4e8d-a5a7-a3226af25708.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 0x6af40a3d381fc8236d282084c8cdb1de39c60d7115a9128279c0451f5d88e934. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GB8KE2417306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80f373124821988e156e40d209fc3373d9e69e666ff81c0ab3bdd636d646fa49. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GB8KE2405878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c35351cdf6a49a9a1965e7569d5dd1f9a2330bfd47952649ef10edd8925f97. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/CA5KR2426020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee62916b99afe43cb7c9348b8a6c609e15dfa64028e1d9280203e86a22282341. 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/GB8KE2328102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3465a8cc82d0fe6cd3f03383ce021aefcff38fe532b008734a232019b6e1daef. 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/GB8KE2323915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc96b5119d0b5360aaff5f1dababe378422a96560a7babc6473e584e1240443ce. 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/GB8KE2302199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa38117f103470d50e6d71073025c973e821b83675d693a6c84e180e356787894. 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/GB8KE2302200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c2a73df30e3692e66d8f4c174313e52941669a6bed61599e4689ecad3a88cda. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/GB8KE2302201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf33f6425b24aa4ac71aa4089af5473f2c1cf2619eba258f6d089c2822c241e5. 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/GB8KE2302202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42c7ede32db79123db8d234be98b72af745f480a37c6ba6cd36a181df5f80ef2. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/CA5KR2319401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x252e540b52adfefa474bc3ab367440b2dcc2ce861a6aefcfaaee06a32e9f779b. 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/GB8KE2214245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7133b13aefdf1746001086f2f60388cf49ecf14a14f03ce36d66f21011d9a3a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GX4Y82200024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99389ba226997202b49ee7debecb7307570a6d8e3d545752f19cb9f349b62a40. 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/GB8KE2200885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01f3f73b2b42ff4bdac740d4a463148c588e9e0dbb1a3522145fc5fd689c727d. 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/QZS672145877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x140adf825466d02e03b623dca13cde57174a10d547196fa1c540bf619a1d0d01. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-07T15:15:30Z), 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/QZS642146513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc79dc8137d7e62c526cb1fe4b97b684e3f4884c570d01293669c3a12672e9d07. 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/QZS632174769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0cb19ebe98816bdef2e8468a76e11f418f53cd52071303aa8f36a9a7fc72547. 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/QZS652130084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa852db873deb66cb8cf72aec7fa40f8b849a9c959f17b71d0d31f6d6a161f9d5. 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/QZS632136773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a5fce3d06dddfad36c628cc87aedf78fb5c4ade2b7553e5561b44ec3044385e. 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/QZS652192412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x152bcf05f5b81d0148abc2c702b295ef9826d0cdead9ae1594e2353a257b557a. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T19:00:33Z), 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/QZS642133395.
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 0xeaaaf7d126b2ebdce5e14d4de9fb11ae398d11998faceae1cdeced28920d53f1. 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/QZS662196307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dafdcd47fba6d1510e0f5f5a861ab9db7a8bea73fc3ddc42386794c5bb5d3cc. 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/QM42K2112088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1352d5733a311ef5063051b6441041ab8a473f118cbc7d08241d07e8364194fe. 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/QZKDK2195288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4be3112e3e12868538a3e9e59befe6140a471136aa0ab0822a895330b4920615. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/QM42K2124071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd38df5ec776c4819b139bb88c6df2734edd475cc88424e3423f397361d72cb5c. 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/GB8KE1953999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d153e2d52e16e149a0a54ca50e7e05699fa6f7fcb2ee7af7347101238b3b764. 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/GB8KE1954000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9985fbd3bc9023198a82c8fa8a3bddce563645cdcde3e69b5e5404718d2d5eaa. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/GB8KE1953998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53f221fcf561c0a259fd6e9630de3d9055406b5c195749f8f2741437105a0440. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/GB8KE1954001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34496e179391dcf634e96f211e9a0837722287e8a16b049d1d4b57115cd3a19e. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/GB8KE1954002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa60ce458b83366bc8d11a1a14eec4f20aac1d9dd4152f37249a8c1e41333417e. 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/QZ5FN1832844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1968a6471b00e6fa974070f97456e5eb7280190e6500e7d542841cd9188b7953. 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/QZ5FN1832845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0e6672e5bbce3cd7c01469cb91ebddfdc4f1fa50a4ee1cb0e461154c8c107a6. 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/QZ5FN1832847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6affff7a998353813e43c4a81927941e5dbbb23d5879a94b72a5cc730d56ca10. 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/GB8KE2162377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfdd156030e83e929e934e2803ac2cc2fc4a34feba96678fc0c60e843488fff2. 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/GB8KE2204458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2533041e57fd3d9a7a4ba031d873b00cdf0b4b092da961f096b65f858513b0b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/CA5KR2350003.