Hugo Winterhalter (August 15, 1909 – September 17, 1973) was an American easy listening arranger and composer, best known for his many arrangements and recordings for RCA Victor. Biography Hugo Ferdi
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 0xfc2ddadbc5f89b8fd1bbb976e6733c7c83ae10f3b897e315adbbf0f8fefb6201. 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/22fdf677-6e9f-4e8d-9539-4d9aa4c55847.json and https://artists.proofprofile.net/proofs/artist/22fdf677-6e9f-4e8d-9539-4d9aa4c55847.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Golden Age of Light Music: Amor, Amor: Music for Romance
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 0x21bdc22355d563119d9be2c250ae3e11c16cdb50f031fc4d0cd780ecc85fdeec. 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/CH6630753301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8da71e3489eb40656fb11949e73b73e461b8e3c3bb7ca3c65ed03d4766b1dcbb. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/CH6630753304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2ae52a8827b718193fa909353a461024164727bf685a9eeb92e5ca06cf7f0e5. 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/CH6630753308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3844a01ca6a95fa50cf0c5644823fbd00e9bcb5b95e410dc1cbea5e95f37c38d. 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/CH6630753309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa4c7ca8e9b9604046fb37e72c26be9013860432e7c704d9cfcdca4466e15234. 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/CH6630753310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc37dbd0434b80f17643c97feb94f4d9b46cc2eee8b928c69e3f6d04f050aefdf. 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/CH6630753312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc49b8eca892017137c09f43f901d7f6ccda6ef80c37f3ab3b562a7c5ecbe6aec. 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/CH6630753313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1df5539f8ebe84683233b8f0cb59eb631987163ca6b56f9d9a1c4e70a421c7e3. 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/CH6630753314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6a3d66e73dce94970fff5d8b97db318f21c809a86f4d58cfb6cfcee54c37e7e. 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/CH6630753315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36437a6c5e3d01a4861afe6e19bd74a036b639451cc71940dd5ad360f027f3a1. 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/CH6630753317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59b440a08b9e80a0638c7cc0bb0718ff1859c458cc459aa61dd39a3c192776fa. 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/CH6630753319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4939d733b1a5d936ee8bda1c106f7e62ebeafc8a0e5707d24d7c98085c3fe0a5. 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/CH6630753320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe56bbb3455f4a7d1f2166f1fe65d81e88d505ec8a6145c4cb7472c0d2b2d68e2. 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/CH6630753323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a4853b5dd45c54769c913c216b1dcd6d1a58b0dac7c9999e4a74e2607a7abc7. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/CH6630753322.
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 0x6989f48063dde7cb8715dedf7de9ac1d7b56c92ccb66cb01f882d2e7bb2e0095. 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/USACU0511987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd98048c732e1bb48db101a08dc3fd71b6c905ca2eae762e24e7dd8f52250aae0. 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/USACU0511988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8848f235246780d1fc5c06f921f0ca57ae7fb1ad96efcd4875de61d43941c13a. 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/USACU0511989.
Let The Sunshine In (From The Musical Production "Hair")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a416a54d82fb32fe36dab97f0568a24bdb9cc54b404893bfc781b7a8e9e5276. 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/USACU0511990.
There's A Kind Of Hush (All Over The World)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fffd8e06a545dd14088018f988a0261696c3ab112e800d935cb7d7b6da7a52e. 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/USACU0511991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8365521fd90f04207c604dae127a4b8cb72227dfd0220d11cbc059da3f392b80. 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/USACU0511992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2149fb45864cb1578dbeb4668a458cb8ccb14a06d4bb686993786ddbc866b3e. 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/USACU0511993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6eb523b85ea7487899f195834ce66c4570ae044ecce663fe9a8b504272fda7e. 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/USACU0511994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc116ccfe21aeab0d5d6fbbe9a04bb6c4e2c92f2a1e7b63658ab3e3cc2dfb22fc. 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/USACU0511995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cd8524a75b7ea96efa1d43ee18f70bdcbdbacbd8f599144a9d5021a72ac1a93. 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/USACU0511996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58e231d09583376dbf30801690cb957175f00616d488721999fe7596e781a491. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/USACU0511997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb94847a590cae9205a3d59a7c4acea8e983b6045c531ce00b42b10ddf3c188fd. 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/USACU0511998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x282dc34439a3459d9429b552cc407566074660da818296b45007cac60877e401. 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/USACU0512000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e9f2891ec1a04f461a4652607a7411dd9d502a3aa02574ea838b09734b6483f. 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/USACU0512001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea089fb2f1975ae162c9ceeb748adb4ee3412ccfb8eec52fcdd89c22ba9791fc. 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/USACU0512002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a9c88dd3dd59562c5954b054fb22013fc52e24e2a1871c540fcb7b051796748. 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/USACU0512003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6794a136110c3861ec039944fe0e72a1a0432a0c1218f9021cf31a8a2a321ff. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/USACU0511999.