Pickettywitch were a British pop group. Fronted by singer Polly Brown (also billed as Polly Browne), with Chris Warren as the secondary lead singer. The group became best known for the hit single, "T
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 0x922a74c6fa74818cf60cba1bd810e950cab6aab098826a93dd9ce9ebf498ee6b. 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/5f9ce59d-73e6-4a96-9197-34ba710cb3a0.json and https://artists.proofprofile.net/proofs/artist/5f9ce59d-73e6-4a96-9197-34ba710cb3a0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
That Same Old Feeling (Billboard Hot 100 - No 67)
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 0xa0c6fe17dfcb581bbd2fb1e93b7759515d5fb7b40ba746f75319d81071fa0c22. 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/DK5C50141428.
That Same Old Feeling - The Complete Recordings
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabce6a0306c3b56919f74c79faf13210a8ab944494ca61f5b765ff10c2c29f7b. 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/GBAJE7000114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d2b1b23ecac290368ccaaebf6a4126d9ed00c133c3e2191c50764dbb7fcf2d2. 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/GBAJE0607017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea1c982f475b500fd11cc8ece26f82c153690e15d88b7f103f2f6dbea55fad54. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/GBAJE0607028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7372a807dd3480310a4b21fa11cd3f6acdd50af73d17137d01590277d8d4a694. 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/GBEHT0400612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd91f3ab162152db3af710ad1645f0bdf332f3899995b8ad96f5be0def1da6e0. 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/GBAJE7700287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bb6849532ca7505055d044df07911c358b0aaf63e985cad6b8f239d4a7c89f1. 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/GB5KW2101883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d1590596077e405c2fafbb3f7dd9cb2da50b79695bc0b702314872ae0769d29. 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/GBAJE7600058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d0f192e86f8ea0e1eb0620305b99a9ec62aa7fa5ea5e6fe76763ff0396d53d3. 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/GBAJE7900107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc35e4076de7ab0d50a20e35256f3449a25752d7f87240c6388f40de4c8df4bb2. 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/GBGHQ7900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b2fa86523d13b43005e9e05c8314b51a73208d448aef7860ddd058a39638fcf. 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/QMVRR1800683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf78f490e1fe40806ddb4c842112f172cdfb155365aa922d7d97eb37c5753a479. 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/GB5KW1502042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4906692a5ae5d0d11c67411276d8b8f4d5b80dfdbf384f030343fb58c8317547. 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/GBAJE0402219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfce81deed69ff05059a812dc7ee1824bfa0807eb3b1eceec62a2381a40b0be6f. 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/GBAJE7100713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cb64371423d160dda4009cfe4c8ef7ba1195dafd55ecc5de8057739abb1341c. 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/GBAJE0707732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca7276a435b6ba7aa62c4c9c08a26300d27b4dd825caccb6bb93263eacb5d557. 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/GBHVK0900449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9de3d8e5b7f1b14df2cf3d9957504402878785674bfdb2201fd5bfd4b1743f54. 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/GBEHT0600022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe984695e90ab75c9600c018e9ecb30e4cab3b7af18cb9fec6bd9e301a191dab4. 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/GB7GZ0900018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb021333adcb74a2949bce2d7531c550ea4bd0ccc75093bbacda26dd61050f1a. 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/GBAJE8000325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96f5bd8fa246e0dfa07f119d4fb62c0db4533cf18951e2b1de720e5939598fec. 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/GBAJE7700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x411a4922d11d3a0de2e209bd66116ce186c04240e6751f199642524d2bd84a54. 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/GBAJE7600051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d1590596077e405c2fafbb3f7dd9cb2da50b79695bc0b702314872ae0769d29. 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/GBAJE7600058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88164faa82ddf4643a618f5f8a92f392a97148b694a09108c46703bc06b66001. 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/DEE868300052.
A Groovy Kind of Love: Timeless ‘60s Pop
Girls of the ‘70s: Pop, Glam and Disco Divas