Crawford Young is an American lutenist and musicologist residing in Basel, Switzerland. He is the director of the Ferrara Ensemble, Ensemble Project Ars Nova, Shield of Harmony, and is a long time acc
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 0x5c967c34acea1163875c755d540acb74981b993bd3df2c1f8f440c1d53ce3bca. 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/328bc935-403f-42e7-a28c-2e55416f8580.json and https://artists.proofprofile.net/proofs/artist/328bc935-403f-42e7-a28c-2e55416f8580.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 0xe8ef0c05a4733b677cb1d5241c7439e2ec8547665f2ac13cf9e8675f619348bc. 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/ES7891501102.
Dies irae (Gregorian Chant): Dies irae (Gregorian Chant)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97482281c2d430fac2d79cfa61fa0da8ca6473cccbbe504f0ed7378d4df59e57. 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/FRZ147404130.
Viderunt omnes, Notum fecit Dominus (The Notre-Dame School, 12th c.): Viderunt omnes, Notum fecit Dominus (The Notre-Dame School, 12th c.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef4831d8888eba08c44eb6eee9fdea514203558a142bc09d6eb33a8892ec0e69. 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/USHM10127621.
Dame que je n’os noumer (Motet from the Montpellier Codex, 13th c.): Dame que je n’os noumer (Motet from the Montpellier Codex, 13th c.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbff5ee39aee3ceb34a66df00cb05f356e6d2cd66c774e8a5422257aaa234ed6. 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/USHM19410921.
Missa Viri Galilaei: Missa Viri Galilaei: Agnus Dei
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94d5dce4e0c463cde5f33f3b0ca802ca8dded6b079adda9c03a714f20df1502a. 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/FRZ149119100.
Mass for 4 Voices: Mass for 4 Voices: Kyrie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcce6e10dd797959f0a9e15805e8d94c4dbefa2eee0cd01e6e7a25ada8fff29ee. 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/USHM10022301.
Messa a quatro voci da capella: Messa a quatro voci da capella: Benedictus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6a4cdbf406c22e3cf34db42c458fb489fd57f87b6fbedfa73ff9a86c14aa342. 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/FRZ149031050.
Ave dulcissima Maria (Renaissance Motet): Ave dulcissima Maria (Renaissance Motet)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6c4234dd4d979c7df20ff838154c966d84a44ed9f4b17e56996653feccbc169. 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/FRZ148919100.
Flow, my tears (Song from the Elizabethan England): Flow, my tears
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x331b07b84edcbe6bf91774725efdfdb5646381b9d6d794c2c332278dbfb317d3. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FRZ147701010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e26b98cb7e52cb02eebbf95a6975795b2c077a3e6548c5478b645033a590994. 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/FRZ140914010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89944dcdde86649c97a8e1195d21e21ede77566852aae2159af03deb4703cf67. 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/FRZ140914080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa495289cd3234f059d72b51a96964bd570bcba0c4c3d5ef7119847d58e14e1bd. 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/FRZ140914090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05cdf204d60afaaa3159a3b1ea4f77be65c1fccbf4739401b1f366451be9bb67. 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/FRZ140914110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6acf2f11ede2b220ce52f8bea65779833beedd71b5bba25c58c928e7bda559c. 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/FRZ140914140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8221975d46e89a21c8684a1de5a579dff9a03f9413a97602b419e83610d62db3. 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/FRZ140914150.
Quant en moy - Amour et biauté - Amara valde (Motet)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff90b8ec63cfe149eec172175ef7d766001e8349d0f0e478f835fb79aa091c6e. 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/FRW189800042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fa2216a11b2db6e7e74f2ac3018803d5d9b271a08d6a1d39723a1cfbf97ad6c. 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/FRW189800043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x423534c16b240482e8488edac7063b180f98a240d47cbc8d3456aef9d85bbade. 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/FRW189800046.
Hildebrandston: Canzonieri tedeschi del Quattrocento
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6573de05f6eb59f67b3229885fc1419045c9694f78199ea5b4e5045363e933a7. 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/FRW189100085.
Figures of Harmony: Songs of Codex Chantilly c. 1390
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c75b8f65645c4e1228eb869fdd5afddbd563facc84b22caa717cd03948a5000. 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/FR46Y9438201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x259fd1e5030a2fea7e028d8a258df5635657d5d207976059470b2c85cafef1c1. 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/FRZ149777030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d9d38b0b50b84e58308bcc95c3c497d26aff7faf8e4ac51f28c20f15fe658e3. 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/ITS660900054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9d123eb26562b70e615dd263f48ffb5c23bc109872b74b132bf96133d293426. 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/FR46Y9438203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3311e2b57fa2a0b446a587af0fbd8adf49427743e141a163050077b130435899. 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/FRW189600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x381347248cbf273ec733cc5c4b56118e28588ae5c90cf0416ab1671074b4890a. 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/FRZ149777050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d40636eec7cebccf935b28869f41ea71d97c67293874263447228c6ff71f101. 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/ITS660900056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ccad697bdca2fbcc677c92d9a0268d9617add939d033b6526bfcdf2db08d7a9. 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/FRW189600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5350346e08cce1694a8366709de663bca51e932a3b45c145a9b2d242c52889d3. 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/FR46Y9438207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x064fc8d937764f77deeb4376145684d0020e9ab9040c902be9b972e607dc830b. 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/FRW189600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38272ad8c737d1d603ae07e4d688dfc6cec4ee091f89f800142f63209c1390be. 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/FRW189600009.
Forse che sí, Forse che no: Dance Music in the Quattrocento
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x137b86de7e0db27a90827d75e91bb01ddda102bae34b22070f3cf25934183d81. 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/BER181918280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bf59af86390fb13779cce031d180847e8e8285eca541ee31e77275f9d8c69b9. 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/BER181918288.
Century Classics IX: Chanson der Liebe/Songs Of Love