Elizabeth Ann Crumb (May 25, 1950 – October 31, 2019)"Ann Crumb Passes Away from Ovarian Cancer" broadwayworld.com, November 1, 2019 was an American actress and singer. Career The daughter of compos
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 0xba7f031d0a1182042237e145b93ed7320ca66c5398a653989591d38bd943a387. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/efa771fa-cf15-45f3-9693-0df95e982fc7.json and https://artists.proofprofile.net/proofs/artist/efa771fa-cf15-45f3-9693-0df95e982fc7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Live at Islamorada's Festival by the Bay 1998
In A Train Compartment: Seeing Is Believing - Live
Aspects Of Love (Original London Cast Recording / Remastered 2005)
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 0x4ca1aac6cd3512cad5a2629f8973df0c9625dea2e551722698c8c4b0a5e20dd1. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBALG0500015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x322de2e869eb7e49b35339c1a774a71550b97d629326f739f416f28bf131f27c. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/GBALG0500016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaba7c3fe4eac52de3a800463a290564f1c159ac285556bf38e456ecd3b6cc4e0. 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/GBALG0500020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56f6bfdc27f14fb0b81082b1bab05934624cf4c4e43e7e789f206ddbab1cc13f. 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/GBUM70603564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e3b411ca6a7f6274220920eb397b7af2c4b9f13acd6a462924b0c6a82bd3051. 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/GBALG0500025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d50b6c915c60786ed422247823c0b8a39b07c713873b1031e1c83463be7744. 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/GBALG0500036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fa18cd8d0bbbadbfd1eaccfb686c3a3b755375f2d86d391f29d73b20bae20d7. 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/GBALG0500039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ac1b9a800477c8dc77a15fac763e10848f2122f47fb0d62753901dc77e9de16. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/GBALG0500012.
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
A Cafe In Montpellier: Parlez-Vous Francais? - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x562751baaa1b4737498bd14d999949f80863dd3e66eb27a28a3c7d5bd1fa2f09. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/GBALG0500013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfec63f2c118aea9e1e3b5b1b836151813ff64196430b0ae221ba347e34e3df67. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/GBALG0500014.
In Many Rooms In The House At Pau - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc615e0b461cebc189bbf7d193e8355768cf7bcbc62fe54c00d4618c0f6fd954e. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/GBALG0500017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x160498d2ccff84b0364c30764e55925e2bc4f5065b78b4e02927c9f93052bff8. Chain 2 (Bitcoin): anchored in block 960166 (2026-07-29T23:39:29Z), 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/GBALG0500021.
Up In The Pyrenees: Chanson D'Enface - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66b7766d93c7740e5fdb9cdfb38382af798186b44a48ba6bbee9ffafae82ab8b. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBALG0500022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d05991edeb62f473e60355b0263efe87c5500e5b654e9aa9e437125b81190f7. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/GBALG0500024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd7bdd24e03ec4e5716fb3dfb342d3d02bd10ed7ccc1a9285e5f6f3ddac22939. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/GBALG0500026.
Guilietta's Studios In Venice: Stop, Wait, Please - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2fafe752326904b0042f790b8cbbde5b2ef848a2854c384a27214897e08444d. 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/GBALG0500028.
Original London Cast of Aspects of Love Cast
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c3d8713e6093035506d195296d4ea46d4f7c84fba4194e17bd345deb65b6960. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/GBALG0500029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95a62ca2707d7269b2efc5a4a34fc9fa133202fe51dfa69c1563091e19338bec. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/GBALG0500032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e8dcf0f0f4ac7b3996e702ebe52709a6efec9920be2d5ef43036ccd969c1224. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/GBALG0500033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3862d7c06857a44203510b044d81be1aae9a947b268851718fefe450b0c20d89. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/GBALG0500034.