Anthony James Sly (November 4, 1970 – July 31, 2012) was an American singer, songwriter and guitarist, best known as the lead singer and lead guitarist of the punk rock band No Use for a Name. In h
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 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 0x82e458bad0ab74a470275087e96b93edaedcf1c3eb7f9a60686b920fc45ce720. 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/f85f7f4c-7ce7-4845-bf61-24e83737cf8d.json and https://artists.proofprofile.net/proofs/artist/f85f7f4c-7ce7-4845-bf61-24e83737cf8d.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 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 0xc4576f541b06e01b172261afc489d6a3d9ac99e7d03e1c3eb4c894834a6a3487. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:35:53Z), 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/USFW40975105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69db391304ac4c3b12b4a70f301b675a473fa60fb9df8239bccb247a41913888. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T20:40:29Z), 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/USFW40975106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf5271f6b82f243d71b1f32e435ece2c290eb532876685a9dbced884c20e836a. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USFW40975107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82575f3a60d8d1f4ae10a6bff52ca5bdd9bc0d436962d45c85a3f65f23fc0f47. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/USFW40975109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a84435d6cad8ddcf890b68a60573c24cc48a640f40206d18a8ce1751c1fee05. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/USFW40975110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01de30f0fa2552568959444f80388874e7171fb02a3ebdc3814c4c0136ecce05. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USFW40975111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17e4171227cc5ff0406ad81fb2b5977abd6e589e8f70350d02c7d8c37e7e5492. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USFW40975112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a12ec33a128325528a321d53dcf2d40b8a14d13076b51ab8bd3a453f8dacb8f. Chain 2 (Bitcoin): anchored in block 959355 (2026-07-24T03:24:16Z), 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/USFW41177001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9a23305db38d915040faa3e32368d4f58db5e59742261a654d6013678730026. Chain 2 (Bitcoin): anchored in block 959355 (2026-07-24T03:24:16Z), 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/USFW41177002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ee2fd4ade893080396a21cb91165704e0be76acde56752ee6250594093f0774. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USFW41177003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfb5fb238d45ee6dab01ae2462a4fb1a4ed437b70e8a63d2a0f42f9e9646863e. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/USFW41177004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66bd4cc797959ec8fa7b808cc74e089440635a8befe0888da48902630c2a883c. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:31:31Z), 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/USFW41177005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc0db8527e955c055152f73394c5c92c11149f3a6ddf94ef95d5d6026f022de1. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/USFW41177006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e3031426f8f627ac0de727e20696ce40ad28fd4f509d17e5dbd6088239efb1c. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USFW41177007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd025aa6ee236e1e760d9115e6ba8baab41ba7dea3368ce57781ce758617c2630. 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/USFW41177008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d93f3c9103417662d85c31c0e74a2e2fd7061f944e23d44dcc4385624efa71d. 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/USFW41177009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ae3cc837d0194215a3edd3aeaf08c54e0136c320cd52a6ad2f22645fca37ff4. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/USFW41177010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x134f6914c180c715ea804369fc3c9d202292e66bfa72804ea44499b91384a87e. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/USFW41177011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2be7355657415fc8335d49b167d62a2efa73a45c5b27b2caaee747324a6d72c. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USFW41177012.