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 0xe0f097b85cfdde07dd710be002ec9eb1dea03952f16b2f873772fe5c7f585b46. 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/9b8fe448-a560-4bad-88a5-836613456ffc.json and https://artists.proofprofile.net/proofs/artist/9b8fe448-a560-4bad-88a5-836613456ffc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
ビートルズ・イン・オルゴール（Beatles in Orgel）～ベスト・コレクション～
Music for Evening: Dusk's Melodic Embrace
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 0x74089501439639c9023951207a6b8a1a60ced95847dc07ba785d4df5da457d97. 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/USLZJ2442437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbf265b52e15609b5a3879813238e241fbeade927720f4720eda24310e961fee. 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/USLZJ2442455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad0b972b2ee4bb472923aae0daa6f07d45cb4dfdd17ee2fbd775d156f46011f2. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/USLZJ2442467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0b47e76073d7fdd157199d154c909ea6feace50b3fd57963ae7017874884e8d. 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/USLZJ2442475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b7a5da45d755878e81740da07bd481ae8caaee3f26c6a74712984e51d560596. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/USLZJ2442446.
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
Peaceful Study Music: Soothing Sounds for Focus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c8e4fff6bfa31b672b29992c0f7a9dd6d255f6f185497bedfb55c4b4ec4c916. 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/QZTV32443509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe88437e4895c8c69c7d1a69392de3df723ba1309016738e32dea448c179ce24e. 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/QZTV32443540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebe38549299161b8af9af358019810b0b3036825fdf67c8342b0813ce715e314. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/QZTV32443575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd76d08891bea19dc73d4114a8e9d41fdbbdf066d52b48f77d462bb3f9942f96d. 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/QZTRX2471686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21f1579a1ffae6e98938b3ecca5261d60e84318633191311bfe9a0a6a307e960. 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/QZTRX2471744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6878aad8df8634a71b6589c9184d4a7ef2af0935e752e9905cf3c70223e876ac. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/QZTRX2471710.
Nighttime Harmonies: Soothing Baby Sleep
Canine Melodies: Soothing Sounds for Dogs
Calm Slumbers: Music for Peaceful Baby Sleep
Fire's Gentle Warmth: Music for Massage Relaxation
Rain for Pets: Tranquil Showers for Calm
Soulful Relaxation: Music for Soothing Escape
Ocean's Cradle: Peaceful Sounds for Baby Sleep
Nature's Rain Melody: Calming Downpour Sounds
Stream Focus: Concentration Tones Clarity
Harmonic Canine Melodies: Ocean Ripples' Musical Journey
Music for Pets: Feathered Lullabye Suite
Melodic Waterfalls: Feline Notes and Harmonies
Study Motet by the Ocean: Music for Stress Relief
Rainy Inner Harmony: Music for Stress Relief
Ethereal Meditation Music: Relaxation Under Rainfall
Firelit Serenity: Flickering Flames of Calmness
Pitter-Patter Melodies: Rain's Soothing Symphony
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eadf20b3e33ff02c7aea5ff4e06a86713276a6c776dd7344bd02e35b700126a. 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/JPZ921402768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x190158b416bee2a9f9e215e520c3ba08c240363e1622a966552ec259c519b9c1. 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/JPZ921402770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9565e11e9d65af084591c5e7ebe8652a7965c69402fad0e18a5baf17f6cc7b89. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:33:40Z), 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/JPZ921312443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a5a3f63b78a32e3f4baf8ed6a1a38cfb6f82e89a1530773be1e5e4782e27e5a. 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/JPZ921407668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff5c8bf2538467fa4d5699127586c496d3eb285b290f3ae9854637abddc24f40. 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/JPZ921308268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76332aefd4d1376104175e368a213003103d68058f88ed28606b844baaeb7856. Chain 2 (Bitcoin): anchored in block 960161 (2026-07-29T22:51:26Z), 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/JPZ921308267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dc40d768cb095044fa750763a4c0a69d0655e80da36aba426bdf0d01aa2893c. 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/JPZ921308262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7734a4e717c3a5b25b8d8217be1b1ed5a00e942c3aeaa268341eb83bc8072b4. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/JPZ921308265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1327965be4b09d1b54fe160aa5ba73cde6a42774ec15bc1b2375c3522e19ba5. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/JPZ921308269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdbc2f4fe710dd6b45ba88ec4578a903e571a078d30a8e7025d95998ac40fddf. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/JPZ921308263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9311d32e0131b2d54c35fac91f75ec71851f9b8ae2eecf7abfeca0518b20600e. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/JPZ921308270.