Was (Not Was) is an American band founded in 1979 in Detroit, Michigan, by David Weiss and Don Fagenson, who adopted the stage names David Was and Don Was. Their song catalog features an eclectic mix
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 0xfdaaca7da3985906f080d836d8dc3c8f91e3a675bcc1e17d9bbe88ee57e6465c. 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/74e58543-907d-4254-81ab-c1c99150ef53.json and https://artists.proofprofile.net/proofs/artist/74e58543-907d-4254-81ab-c1c99150ef53.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 0x459407e6b36161252e710239f34b57c7a628ef55d435dc8d5ce7d4b972a08b46. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/USUM72310164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca1ce4fa621e956a0b4b619aa94545b5f619f144582ff882a1db802f78b79814. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/USUM72310185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c3dd05a4b889f4df6c9bb5437564dc1db1d0825a1b5f9d1e028de92863e4292. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/USUM72310194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9705e1de087c81b4df5bc62b374389948d9cf0eb9f4448014829f138f4746a67. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:00:17Z), 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/USCA28801170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ced974ff5f78a9676d816031d72a8603fb6e7e167ca52b3edf65806e9436053. 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/GBF088700633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9c735e7449b33a7512978d39e54c7cddc8aa184e8407de9bcbfff9d85ec5126. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:48:15Z), 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/GBF080500116.
Spy In The House Of Love - Streetsahead Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d88d43afda3b1ac15b76c2d6cbc01a52a288bfb925e2f6461faa0245d2d522c. 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/GBF080400205.
Stay Awake (Various Interpretations Of Music From Vintage Disney Films)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44a8c1bd63bf4f2f358518b77e7297ddb4e398fc4cc06baec8f5f2bcd9709852. 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/USAM10110595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89fbde75a0d564f01cfdce0c7dd6f34432be30e92d1ebe3e9e7586877d3b4d38. 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/FR6T50300219.
Tell Me That I'm Dreaming - Greg Wilson Ze-Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53602f7be68e429cfb52581aaf3448b0306aec8a5dae2c8c00c94c6eb209de5e. 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/FR6T05095607.
Tell Me That I'm Dreaming - Traditional 12" Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc5b4f0cd065eba21912fbad9e4dc35a8ce0b8cf242538b429f127d528f28a9f. 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/FR6T50400512.
Mutant Disco, Volume 4: A Subtle Discolation of the Norm
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f7ad7c91ebbd9121102dafa60555b13d635cb3383a77e144cd52aa43bbe88dc. 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/FR6T50703712.
Island Records Post Punk Box Set - Out Come The Freaks
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad9f6a1f4226bdc3e6113032e97e67779ad6a0056184542af4af701c8aa23502. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/GBUM70600355.
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 0x06affa05d7a74f3738687e6d1bcbcf08855ab4943dabbfb946d03f27bc162dbb. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/FR6T50300201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x991c4c816fbc58e0b2d52013f4b4a2685b344b8d7bec4436effe0f6a0f610f26. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/FR6T50300216.