Sorority Noise was an American emo band from Hartford, Connecticut. The band consisted of members from the bands Old Gray (Boucher and Singer, and Ackerman), Prawn (McKenna), Small Circle (Boucher, Si
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 0xde0dbcc743c0ad7b1b69a2117bc7b952d7e0e059e7b567579867d6c2ca2f4c06. 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/da568bf5-fb58-4df9-b934-b6823ab69b14.json and https://artists.proofprofile.net/proofs/artist/da568bf5-fb58-4df9-b934-b6823ab69b14.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 0x9ebec3d227cb87b236da4eb76806e07b7b883df7aae5953851b0b35066f80c0f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/US72W1821101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b0564668878d3c1a54b24de399f6959f6aad4340e245c9a991f1c7add6d4c6f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QM4TW1739269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73d6c1e9bc47233e047f2b9fa9d74a6fe42b2a3d90f4ff7202a65cac7c28e9ea. 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/QM4TW1739270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5b800268de3aac22f8dd208f1e69f40b8c59d96be5aed2f8f86b7b08d916b18. 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/QM4TW1739273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ad82bafa1a50eac1814d0500be3448ec2c2f2a26582d7f54f2fb550b1132443. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QM4TW1739274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a756165d37bb1415e2b99ea196065f8093a32d83cb8d3dce2464523d0fb3aff. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USEZ61500019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c30aca6c3690fe794a5bc2945c54f4a5adb2ad411c8c400e5743340f6d8bbf7. 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/USEZ61500020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8fc9b85d922b48a78566825b9a58ccdbefe646569af102ef12e7f364816f75d. 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/USEZ61500021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce7d6178023b79015a3b003a238d1904e204eef4f1d1d35eee86ee0179016b8a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USEZ61500023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc51d1bb62d5c8504ab5a0c9753a1cb7a59b556fa302dd9c9b57242a0443f28e3. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USEZ61500024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60d8ff53e7b91ec88c35774b8edc48da7c45a072ae17740b958048f243f37cc6. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USEZ61500025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf494f5d9f94823c7017140cbcb8a0918fdec7064d47859eea897ca9d5b84cf09. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USEZ61500026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x920ed8e586fd6f629db780be4f782c3d159d314a7025c9df899d9691b9e18fe5. 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/USEZ61500027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a3f526a5dd444ad519c964b551180d71800b5624f9bca3eca00cb79cc3d9092. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USEZ61500028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c6154de8fc521398ed47f1b636c936385471799bbba607fb3152035f0ba9027. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USHM21402423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dd4fcda1d9a6a7a28570b6275845e111a3120dea4c3012de86e0953228d5a8d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USHM21402424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3309f1e4fb120c69b73546051de7f268c310c877442f83abbbae36d9f631db8c. 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/USHM21402425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ebcd92af6e5772335f380dd3db925b7312e17fe328e656f27abc4ac3cb867e3. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USHM21402426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9cd8432edb9070cdbb6b67ab8588ebc4b921eb0961460a91729e6ebd1abd6ab. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USHM21402427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x664b8071f2c275aa0c523904025a898f16b97edcaf4343cd1b2a8a11d040f02c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USHM21402428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc423e843473174c00f8aa17e93c946e51a31029b65860f62434c4289a998b3a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USHM21402429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3e11ad8d6ba0b7369634493c264ffcb399aee8341fc3ddf0c8eabafcda98495. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USHM21402430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf98e51c96b922e3798a7030af45dbc5d3134883926994ec7e39c2e47d783a5a0. 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/USHM21402431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc47c8f04c5653048d547fadfb306753e706ae11cf65a5d3554357b67d9b63e33. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USEZ61614902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e9fc0dc1a604ad0fdd5f4527aefde64bf556f936baaba7870f246fc5df642b0. 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/GBSMU2485151.