Lisa Drew is a retired editor who held top editorial positions at Doubleday, William Morrow and Company, and Scribner. Drew was an editor for Pulitzer Prize-winning Roots: The Saga of an American Fami
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 0xb2c9d6e5e3654715fd9ea9402e71b3803f0cfff9a8fd0f50b94137623f7a32e5. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ccb0c20e-01e5-4359-b7fc-d5afb4f53436.json and https://artists.proofprofile.net/proofs/artist/ccb0c20e-01e5-4359-b7fc-d5afb4f53436.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Rosa das rosas: Cantigas de Santa Maria & Other Spiritual Songs for the Virgin
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 0xfaaeac57faa69d96d4c19a8bb6dbc7f328d7f972c0fa46dba8bebfb2002d22bf. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USTC10764800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d2eca55f1eed26eec5817b308bf1cf015d2b5a26f44a20d46170d9a75b18646. 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/USTC10764801.
Cantigas de Santa Maria (Excerpts Attrib. Alfonso X): No. 252, Tan gran poder a sa Madre déu eno fondo da térra Déus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b7b6fdcf9d1a0630b83a8e4af4f9bc53038f68ab7a042e8bf7488feed0d048f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USTC10764802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08abc5572cac9ca176d8ad9d1b17f5ee0d8a3ee4e4495bd9689f25c35a99ab4f. 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/USTC10764806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfce9952817ac5c4c8755c3588af1fca3772c42d25caffdee329059a61c7f6f24. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USTC10764811.
Cantigas de Santa Maria (Excerpts Attrib. Alfonso X): No. 166, Como póden per sas culpas os hómes seer contreitos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dfdacba19122a011e6b79fb5d1cebea206fdd60902040d20f782726a233551f. 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/USTC10764814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcc7fcd02155f42e0861f01ee687d7ff13588a67f5a64930df31838853726378. 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/USTC10764816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x568b4115620d13a01c1b3fcf3ff3e278ac2841a83220e801932ef9f2ef3004c6. 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/USTC10764820.
Il poverello: Medieval & Renaisssance Music for Saint Francis of Assisi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d07e9bc1b33a4d4af16af821c30582ec7d37c88050c5cecf7cea9794e2918ef. 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/USTCZ0960837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a474dc13da4e3831bc8959f51e7d2b10edc0cc484b3d33e28dbfaf7c4003d3b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USTCZ0960854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43d2554629c91b6a46f115c8ddbb0bb9898d6fe3f7be82c7e97609116dd5db6f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USTCZ0960856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd552190b24c6f4640d2d17527c3542fa6c98b8ac5a7db1c73eb4b550213461db. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USTCZ0960858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe10797f4b26fbe4483b4daaabc20989bdb51992ee7e08f7ca3e79c71449607be. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USTCZ0960860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd75b520e3f0eeda6a3be1764c49ca47d5c7f00253f7266132c0d46409ccadbe. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USTCZ0960870.
Nā Mele Hawai'i: A Rediscovery of Hawaiian Vocal Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cd3a74c5cec34ca74e08ab7c1a311474f3e1e580425483f5fd904f5acd0ca47. 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/USTC30753622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d0ebd4db00343462e2e5b6eda7595f51f2a25534a44c2af8cc9f4eb569e3b07. 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/USTC30753624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ce1382b6a6edf5cac06f74134d665727aff0548c382789e63829854e45ef374. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USTC30753627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa295c2d748c793accc7539eb88d834b92504c536f82dbd6e10c1ab9d2b4a378d. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-21T17:15:38Z), 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/USTC30753628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00fdb9bba4fbebdbc22c33a1ae0332ae521ed1ea8d999c1e1c1f2780beef23f8. 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/USTC30753631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05ebf0dbe67bd8838e8f5ad55767fb067119350ba3618dd68698be94df43d862. 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/USTC30753632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x070dd72f343c98a32be258fcb3b7e86591b1a2b9c2c101f191531d60cf29a3c8. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/USTC30753636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eee634b3ecb41f3604079465c0492cf0b58e1aa51b68dda29e2179809fa7195. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USTC30753650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2bc9871dec88f7dcea13234fffbe6d1dc3aade23b154f186869602d99181e1e. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/USTC30753652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6920de8d9ae0f58ac54175ba5bf5d01c3beb41e3332a5f05da0441011ce210b. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/USTC30753658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1a56047e8613147fdb76d9dd491091d4d648473cbbcb46b77f3e4a2b4fe3b2d. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/USTC30753660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf0426aaa1869d0054e0623d10eaee36f8b104fc19c6c5c447b497ce3022582a. 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/USTC30753666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x394b1a4f2a133c8a23b244801fcd2ad1f25ffda2f17b558b44d6ae462b0900cd. 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/USTC30753640.
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 Toast to Prohibition: All-American Songs of Temperance & Temptation
Celebremos el Niño: Christmas Delights from the Mexican Baroque