Seven Sisters may refer to: Pleiades, or Seven Sisters, a star cluster named for Pleiades (Greek mythology), the seven sisters who are companions of Artemis in Greek mythology Arts and entertainment
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 0x5b5a25f31ab33b8f485519e6541d9fbb51a3af1ebb8b68773996faf4ec930b92. 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/bc50422a-c669-4491-850f-7c3f5a6d32ca.json and https://artists.proofprofile.net/proofs/artist/bc50422a-c669-4491-850f-7c3f5a6d32ca.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 0x33840f2ca32d0e43d0521dd5ee48d84382df14e9b51a3b11248607e1b4ba8624. 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/GBBLY2101270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x744a68fb2811e3489caa33b8388157442e7b4170f276b957ad9cb2145464fa19. 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/GBBLY2101271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdab62819b5e35b8b63d4a927c68b53dd0b311161ffbb4c94171811f94a2ff2a2. 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/GBBLY2101272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34d2338e2ee51ad88623a790f70438cca908a940f024eab7afe9fa607665523c. 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/GBBLY2101273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3993a4dea686c3235ad794c1af50f7b44a552f10488301db30267db4875dcd3e. 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/GBBLY2101274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb384d28c6e2dfd599b1b0cbc47f90567c1ff7cca7172d4a7252b8d1820e9fb8. 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/GBBLY2101275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc07c97fbcd414f058151555debb228bb0d487cf621d90d99f6e78f32ebf9842. 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/GBBLY2101276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5273e814acd4ff6c3811457f4ab52e742b828d37e9d6dc3d07b102574baf8f58. 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/GBBLY2101277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e553cb7b2fb9467f7110affea202d700745874c8cf9456d47cb5e968d6c20b3. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/UKJXT1800501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64939cc92c271b06b41880dc4717f330569f9025eba6f1bbb1f6e639b1838750. 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/UKJXT1800502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64ca14b4376c7dfb3c90a4e882e6805fdebf0e3427cd91b1220178763ebdd004. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/UKJXT1800503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5060c467e733a473b70bf67319f496f2de8ff0339a09341f53dc1b0029e166e1. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/UKJXT1800504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50cad4cc9a1ba4155d03eb24db35f4b33c1420c487d8eb6f640d017981190306. Chain 2 (Bitcoin): anchored in block 960305 (2026-07-30T20:14:59Z), 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/UKJXT1800505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fd92fd5aef403a031928afb1e51f992d5dfbaf80c4267e746329109966619b7. 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/UKJXT1800506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8587b85d3b99e80586be9b1bf4b1aa9211031458785cde7056df8d6352801579. 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/UKJXT1800507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadbe737511ca56e0707737950a0d2feec58d569ecbfc29f63e2675cdc6c1981d. 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/UKJXT1800508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35904283b9c5ef3c31a9f9f379177a97ee77d2b7eb5088d04106aaf5c3bd720d. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/UKJXT1800509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x027cedadadb84ffe90ff6f5642c2e686687ddaf92579c4a50c683cca0d390cbf. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/UK7Q41600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50753898b836ffffb536f6fabe746ff4988779585262e42ec786ad3ec3d97ddb. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/UK7Q41600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43dffca418fe841a39a164f84e2f6c54943be493b9eafcb49918e3b8e143ac7a. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/UK7Q41600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x753cf804d5d211bfd5feda5740e4cceb6b9af0823f9b64f19b76a24dd9b1bc77. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/UK7Q41600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd972fa087f5d5b7b165ee6ae7992521aa8d9fce9cb736ff7aab2c5bf16eccdf8. 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/UK7Q41600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75db44c9d899e3a246bedfef17cb5973111958469fe732b7eb623625a51b46bb. 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/UK7Q41600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5fa9d4dc68b43918721612aacd1a2e138b03eb06f67d309ade1a444a932c03b. Chain 2 (Bitcoin): anchored in block 960167 (2026-07-29T23:42:34Z), 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/UK7Q41600007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21fa98336fdbc29b13d19df7cb5155270dd6acfdc805024a9fa55f1404a2813c. 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/UK7Q41600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdab62819b5e35b8b63d4a927c68b53dd0b311161ffbb4c94171811f94a2ff2a2. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBBLY2101272.
Shadow of A Fallen Star - Single Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf196acd4e78314770a4466c8e02e037e7ca116588ba36f820383200e5d96a5bf. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/GBBLY2101278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3993a4dea686c3235ad794c1af50f7b44a552f10488301db30267db4875dcd3e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBBLY2101274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b2bd5501814a516bb809086e078388bfcc14fe6070a1719eb325ef33430fc71. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QM6N22087865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35ca5efbe29298cd81cc5ddb95f8019072087835ad718833b23004a21845d713. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QM6N22087866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde873e2d473e690670fbe068b12f10c9202567b2ed667c20b70dffdc62384f75. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/QM6N22087867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9177fd867875581430fd76e16f15152c8504b0205b68b46edb692163065593cd. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QM6N22087869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69bf940630143e70265afe66a9468ec581f619afa439ad9e5d2f6af040cf118d. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QM7281962118.
British Steel - The Rising Force of British Heavy Metal
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e553cb7b2fb9467f7110affea202d700745874c8cf9456d47cb5e968d6c20b3. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/UKJXT1800501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64939cc92c271b06b41880dc4717f330569f9025eba6f1bbb1f6e639b1838750. 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/UKJXT1800502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64ca14b4376c7dfb3c90a4e882e6805fdebf0e3427cd91b1220178763ebdd004. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/UKJXT1800503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5060c467e733a473b70bf67319f496f2de8ff0339a09341f53dc1b0029e166e1. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/UKJXT1800504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50cad4cc9a1ba4155d03eb24db35f4b33c1420c487d8eb6f640d017981190306. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/UKJXT1800505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35904283b9c5ef3c31a9f9f379177a97ee77d2b7eb5088d04106aaf5c3bd720d. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/UKJXT1800509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b33d11d14701a6d3fec645b402b188cb2389bd0e2f340d7399a9d038eec44c8. 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/GBBLY2500126.