Top Girls is a 1982 play by Caryl Churchill. It centres on Marlene, a career-driven woman who is heavily invested in women's success in business. The play examines the roles available to women in old
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 0xa3cafa44476f637cff8184a7e34229101c3ba5e54fca74c09ec351244e68c7b1. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d355c3d5-c5a2-4268-9e54-423c733b1495.json and https://artists.proofprofile.net/proofs/artist/d355c3d5-c5a2-4268-9e54-423c733b1495.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 0x7852f0482fb83bf9c01e9e170788b90235d7fde657b60d95f0c88040e2f8c600. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/PLH751700052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ad688338160609d3322e29001870adc7cef9b7af21aaedde752f92767e916a0. 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/PLH751800078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c3c2d1d6e8d69015f395cb2dd1bbc6ea141fedd9bfe6b83aa0036bff8366496. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/PLH751800080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b84dedc6bfe3095a3988e6c03dea1d2f138f20fce672342cf0dfde686cc36bc. 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/PLH751800081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6289b67a18ada93a008e19cee91da4ada4d62212bf23c5e495169bd88cc4e53d. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/PLH751800082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd13bffc8815ba1aabd8d3b28f5face3c14ef0b09373ea0e4fc1252c176542955. 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/PLH751800086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcff2d1890794c8bbd0a731396b2e1130b7dcce3352939006e636c9de6533651b. 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/PLH751800091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37061de689964d7e6ba55aa828af896d7c27c88c1dc5fb6d4f67689cc75f1b8f. 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/PLH751800093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9654f60d510a483072dfc02675d4b4720080bd983c44280822862b515900f4d2. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/PLH751900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fad68716c4de8509fd00aa4f25fc2cb06bc847dd2934ad8f5543e16c9be2f4c. 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/PLH751900080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x577f74530f3e231c17688342b437c5d0e5e276d823477432c8d09b91ae4ea29d. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/PLH752000032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27a0d33a55062d5b55d3217eb21cd45f8d8bf81459c8518407d4b4b1b1d3890f. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/PLH752000030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7bc457551ab8b45600660f45dba641a80b8d976ec7f96d7e95788c1e9673957. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/PLH752000043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x798d9490860c076a0cea8493f18318aba815a3ba0a02968db2266510d96edebc. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/PLH752100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x628dc3e2066521bfddac40c3438a715d29e4033e4e56af46ffbb523d6d0e9cf0. 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/PLH752100033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ad6da83fc5f407ec89e626d7aeff349190afe8c94c1a4916601194c4070f208. 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/PLH752100035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e2e3e647b407697b8d86f191fd5199483f46c2c0b13ee6804b5d1ef7256c1a2. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/PLH752100047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f3ca47464d1f8f8c53f80885541f2a4efed36775273b50424e68e8b2b9905b8. 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/PLH752100055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb89552f2646a98da37733a47376e6dac2bd1ba6fdd0a63e9a5aa0b07ebba579. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/PLH752200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x551d020430a951ae5c7600b4cb1b01ad53c8a6da49549312a860cb47b73e5003. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/PLH752200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc91b32c3ca95cd9450ed833a4b43ba9b15484e24bf747334cda1eb704b1ddadb. 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/PLH752000035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x628dc3e2066521bfddac40c3438a715d29e4033e4e56af46ffbb523d6d0e9cf0. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/PLH752100033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ad6da83fc5f407ec89e626d7aeff349190afe8c94c1a4916601194c4070f208. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/PLH752100035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58ee331c9dd9ce0614b4b966d7aaa63dad75004c1898dc29e9b5618f520ed378. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/PLH752200045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fad68716c4de8509fd00aa4f25fc2cb06bc847dd2934ad8f5543e16c9be2f4c. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/PLH751900080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08df8405ca8ac53c81f58bb212235ef6710f1a40626672103bf28f0f8a3a8ff8. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/PLH752200052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17eab5335a2e77a9daa7a1027b1e419368d35a4c8f034c985f8ae2d3ca9d8b67. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/PLH752300263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc00b9d05af8a637ced388fe72db8c847a462106e4bc4764cc6edbae421637be5. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/PLH752300272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb57a748f9f5b51d89c444562c85b29e28e6b8ab67311932db1034fc7e2c6f45e. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/PLH752400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d62c8f7520ad42717abe74c011155a8342cb797a4036ada20e336da0cb7f31f. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/PLH752400077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd32c66030a7aba985803050480cb22740572806f4d59b68ad8ed47e3b3c5fd65. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/PLH752400081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1350a2bcc01b6a1fc14f9629e4ac41e13b7bf4efb8b40b77971fe0677717f277. 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/PLH752400106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58b08e3fe2c9c7dbe46634601692409f883a6d1817c0b213eaf27c0c5eb14ee7. 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/PLH752500003.
Składanka do auta - największe hity Disco Polo 2024
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a58bc4e6ed143099946e9597fdf23a8dd725f0dac641248d6036d31917e6775. 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/PLH751800069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76a29ce344a1d64df53526cd986c8986413ff902741befa7c5dd748b8ece0ce4. 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/PLH751700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc00b9d05af8a637ced388fe72db8c847a462106e4bc4764cc6edbae421637be5. 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/PLH752300272.
Sylwester 2021: Największe hity Disco Polo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f3ca47464d1f8f8c53f80885541f2a4efed36775273b50424e68e8b2b9905b8. 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/PLH752100055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7bc457551ab8b45600660f45dba641a80b8d976ec7f96d7e95788c1e9673957. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/PLH752000043.
Przez Twe Oczy Zielone i inne hity disco polo!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x198cc69039df1383beca46390e933c5ab31bdc34184688d2c12372e82584d297. 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/PLH751700173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7bc457551ab8b45600660f45dba641a80b8d976ec7f96d7e95788c1e9673957. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/PLH752000043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x577f74530f3e231c17688342b437c5d0e5e276d823477432c8d09b91ae4ea29d. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/PLH752000032.