Cinderella, or The Little Glass Slipper, is a French fairy tale with thousands of variants that are told throughout the world.Dundes, Alan. Cinderella, a Casebook. Madison, Wis: University of Wisconsi
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 0x02a5ac9e083334b81f8a66a5d4ef443b384bab641776edf55cb66ebf42a2de0a. 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/0de2eb2e-0d33-419f-8255-b9e86c1c1a62.json and https://artists.proofprofile.net/proofs/artist/0de2eb2e-0d33-419f-8255-b9e86c1c1a62.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 0x12e22fe7a7c1977a649e630a3adc903f9c625e41a1426122866e152681409004. 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/PHV021010432.
Cinderella (Vicor 40th Anniversary Collection)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb12c70c5144b493e52e9af8e419fce742ce7adb1f80c5818814eb8cf5e6b59ad. 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/PHV021010424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a4258648c23c75b8cb1ec3f205b10274f2b88ffaad5747b544c10739eab166f. 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/PHV021010435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d6fac87a2b955832ed1f33d6f30fd5013a074d6d21af85c5e64e09933925ef5. 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/PHV021010427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a123708d98723932a727d96790ff07238f4df5874dcd4a9c2465ac79b403a71. 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/PHV021010425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84028085acbc210a1eb9c092f7df6ed8291396c0b6a5dad197e2d19afe3c29a1. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/PHV021010428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c0809a6b6713f2044462eac536111854da1d173ac166b6b3a6039c71e2a1d13. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/USA371154602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cf4e3112891ea2ba6863d11c91730df453487c71ad5ca6b29d4f3ac6e06a0a3. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T19:27:18Z), 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/PHV021010426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0934ec9788f56952909dcdce6cb2f9c91d2fede0f5101b315429706c88c410d2. 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/PHV021010431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1a789975e223f316009f4a8e2715cd308c31a5bc54689957c1c6a52a3c06f73. 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/USA371154604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62d10fce27097c183f7e2d43844ecb9fc677334d19fd8c0b5099d47a93bc0b32. 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/PHV021010434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ed6e2098336820f8865aba169bdc2a2427021b10de38584c7b7f3f596443e75. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/USA371154606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd900df0a88c00e0682795dcb28a9b35578e3bfae1d892645c3cb769566159285. 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/PHV021011614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed93aded3738398d5d88ac7709f846597a27c05721124abe2552034ecc095073. 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/USA371154607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3aedede58ef7bd3d547dfdb11aa172b0c0874e84a61e72f7927191f3257feb9. 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/USA371154608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27e7186aabff92ca5c042d3195a0b443ca35c0bbf717e4e40b075d5cc3bef94b. 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/PHV021011615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79c9b14955c0b34c1df4cdfa15a86e0c2ec631459bcdeb824d9685efbf955e6c. 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/PHV021011616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17cc6fa239443d96112e35da99ef6a0268f66267bf394ecf39f1ce3a6feea3ad. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/USA371154609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67bb0ccb0cf37073f5b563cdb87799460ce006ae104f7844169ed0f6cc20e04d. 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/USA371154610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12e22fe7a7c1977a649e630a3adc903f9c625e41a1426122866e152681409004. 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/PHV021010432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe48e6117e0298dda610fd351f5059e50e44777b38ae8e83a8eb3ea7338b5be24. 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/PHV021010430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c1a65752d27874a80d6f7bcd3e043f2a2819c2f68ac37c0f9d494eb938eaec2. 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/USA371154611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3bc5b0e2106e3bc878e65b7f00ed9aceeae0c0d56de6a4185808fd8bf69e494. 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/USA371154612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31c1eec5f624a37cbca36d007f4c2066cefce7f41a906238874f0905de395652. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/PHV021011617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe19484a5c6bc2364a0b2660a53d451e1679d0d61e758d328e87ff334b83d3b93. 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/PHV021011618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6de95435a78cb94a701c245e31c215b1b9fadfe50c6d517796db698857eaf01. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/USA371154613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc00596cfd290ef858ff969010c2e900686f69d2a5e6dd24d24beb0a12bd2685f. 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/USA371154614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabea100af4ddc3582dd4f37a9175bd4647d46ecbf9cf3bd2c9aea049549a6e96. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T20:44:14Z), 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/PHV021011619.