Carlton Ernest Fisk (born December 26, 1947), nicknamed "Pudge" and "the Commander", is an American former professional baseball catcher who played 24 seasons in Major League Baseball (MLB) for the Bo
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 0x52862d69303360caeae833f57acd13454a0989fc6631d0a77641cfdb4a891f47. 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/248923d7-e390-481d-9cbf-a53f8aed6e26.json and https://artists.proofprofile.net/proofs/artist/248923d7-e390-481d-9cbf-a53f8aed6e26.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 0xe4f8cad3342c806663aadc2d8664689f648c8e38da8ec4041805553e2ba5120e. 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/USTB11500287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45af0ff4b6502d8862ab0e5cbf6b274383e0676a3171d0e548923b33cfbd6fe6. 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/USTB11500302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa388963b595f0019ccab2aaa62af600e1a6528ae5884bf363e2d509a7502cae2. 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/USTB11500308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb729327927b64e3cef7d51264aaca772c55a47b5a7154262b78b99e044d8ecfc. 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/USDJ29400068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x170ba3372475c72f39decae1034bf04890bf4e65a8828d2d272a8411ea944ed4. 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/USDJ29400070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32f2922c963c6ba8fbd45bf328294f36b87da6cf0f1cbc42d3b012fe474e270d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USUM70607481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb729327927b64e3cef7d51264aaca772c55a47b5a7154262b78b99e044d8ecfc. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USDJ29400068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x170ba3372475c72f39decae1034bf04890bf4e65a8828d2d272a8411ea944ed4. 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/USDJ29400070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf00527f891b8083c31ed9038c6b9f74350763d91482db18454e05cbcdecf8030. 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/TCAEY2090383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73cdc100aa1920e3cd701d0d0cf016a79bc8c82423d3311aab3fa996f4a827b0. 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/USL4Q2216355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32f2922c963c6ba8fbd45bf328294f36b87da6cf0f1cbc42d3b012fe474e270d. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USUM70607481.
Wu-Box - The Cream Of The Clan (Wu-Tang Clan Family Album)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc55abe9653519bf3d50142dd24738582244c5e7422acb93c3288c8236655992c. 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/USA560686491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99a8f7e4f2c47c52eb3bca8e77ad3076e7a38e5cd1c426526dbc91af84be4e55. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/USA560686500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa93de75e13a198e4ce28509ee1c98b031eedfbddbcbdf8c28b5236116b5535c7. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/USA560686503.