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 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 0x522136d7be856ce931d2c64d81430cca1abf914b3ab688ac70e246a081440950. 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/a1d9b4e0-910a-45cb-aba3-ab5ea27cc8cd.json and https://artists.proofprofile.net/proofs/artist/a1d9b4e0-910a-45cb-aba3-ab5ea27cc8cd.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 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 0x731f6b66e6a39431b51993b3e5deb493ad7f928200084fbed872a26e4a98f077. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/BGA471813836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff21605e50cc8c298cebe8299bade2626e6fdd56a8d8c7eff3b9d86979ef54e9. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/BGA471813837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2af5095e632a586271f40f35e22ac53c2b7bbe56a97670f0a790a7350bf3847a. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/BGA471813805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc060d05e6ecad91d6f3a7407c029f5720bafcd2c3b271ff908e7ae0a3ffe13c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BGA471813806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05149791f4ff76349201791e38ed1bfe966f77d67ba70e634ab5b80f8ccfc893. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/BGA471813807.
Delicious Happy Bossa Nova Jazz for 5 Star Hotel Lobbies
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62199c7214b906ef6de948a195305f6ca0e82a36f2c787e4eb64d854e60a4f88. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/BGA471813808.
Instrumental Music for 5 Star Hotel Lobbies
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f6ffd46c46fa5d1d47f05ffc31f79062290f67f4181bcc0bc687ae3e607e346. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/BGA471813809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89758a9c29e40c5a88eb10e640557404101e2eb010265733ffbdb404bb568fb3. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BGA471813810.
Background Music for 5 Star Hotel Lobbies
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a33db8536137709163a75251e37c8af45739ac7d8234d8652aec6ce2427d531. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/BGA471813811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec39aa7f51fc2905cc5987ec21aa2efea1dc773e99c7fef1cd84e83d064efdea. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/BGA471813812.
Delicious Music for 5 Star Hotel Lobbies
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cccaa3e940ff314ca444acadd51bc326937a3991e5f03992399b3ffc651a576. Chain 2 (Bitcoin): anchored in block 958130 (2026-07-15T08:37:45Z), 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/BGA471813813.
Distinguished Music for 5 Star Hotel Lobbies
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35c71763655cc06f05ad5fda46e7d43fa350781d92097bd5aacd6b91df0778b8. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/BGA471813814.
Moods for Hotels - Piano and Alto Saxophone
Big Band Jazz - Background for Hotel Restaurants
Music for Weekend Getaways - High Class Guitar
Tenor Sax Jazz - Ambiance for Working from Coffeehouses
Tenor Sax Jazz - Ambiance for Working from Cafe
Trio Jazz - Background Music for Working from Cafe
Music for Ordering In - Smoky Trumpet and Alto Sax
Majestic Bossa Saxophone - Ambiance for Family Meals
Extraordinary Jazz Trio - Background for Coffee Time
Subdued Music for Sunday Brunch - Bossanova
Magical Music for Cooking - Trumpet and Soprano Sax
Bossa Trombone - Bgm for Cool Restaurants
Backdrop for Ordering In - Easy Trumpet and Alto Sax
Music for Dinner at Home (Trumpet and Alto Sax)
Music for Fine Dining - Trumpet and Alto Sax
Cheerful Music for Fine Dining - Trumpet and Alto Sax
Backdrop for Winter Moods - Trumpet and Soprano Sax
Exquisite Music for Holiday Dining - Trumpet and Soprano Sax
Music for Winter Moods - Magnificent Trumpet and Soprano Sax
Mellow Piano Jazz - Ambiance for Fun Days
Piano Jazz - Ambiance for Coffee with Friends
Jazz Ballad - Background Music for Fun Days
Terrific Jazz Ballad - Bgm for Coffee and Fun
Backdrop for Coffee with Friends - High-class Piano
Jazz Ballad - Background Music for Funny Moments
Music for Fusion Meals - Trumpet and Alto Sax
(Quintet Jazz) Music for Tropical Outros
Music for Virtual Meanings - Jazz Quartet
Backdrop for Low Frequency Autumns - Charming Latin Piano Jazz
Music for Taking Time Off September - Urbane Latin Piano Jazz
Bright Easy Listening Piano - Background for Chill Hangings
Sublime Jazz Trio - Ambiance for Invisible Mornings
Backdrop for Roaring Lounge - Amazing Jazz Organ and Guitar
(Piano Jazz Duo) Music for Upcoming Times
わんこのプレイタイム用くつろぎ音楽
ラフ・ライド・ドッグオーナー・チューン
パウズ・フォー・ア・モーメント・ドッグオーナー・メロディ
室内わんこのための落ち着く犬のチューン