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 0x8e4d6964e07fbeec093c557d7d51e1e584b098dd41cdc206f7a5c131309fe292. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/76352677-57b1-4720-987b-44415bdd634c.json and https://artists.proofprofile.net/proofs/artist/76352677-57b1-4720-987b-44415bdd634c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dog's Rain Retreat: Calming Canine Melodies
Ocean Waves and Melodies: Music for Soothing Dogs
Descansa Tranquilo, Pequeño Cachorro: Espacios Seguros y Cómodos para Dormir
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 0xc048f6d88bc86afaf3976d47a5ae5da0d36ed9ce2e9944b01ce501b27b19a059. 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/GBPS85922786.
Canine Melodies: Music for Dog’s Comfort
Sleepy Doggy Music: Healing Sounds for Your Dog
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1be45333bea7200e8d1f516dc3190c66ebf1f07fed45f8b2ac449d2bb725a4c. 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/GBWUL2482014.
Barking Melodies: Dogs Oceanic Playful Tunes
Thunder Dog Harmony: Canine Serenity Symphony
Dogs' Ocean Retreat: Relaxing Beach Sounds
Dogs' Ocean Serenity: Calming Water Sounds
Paws on Fire: Unleashing Joyful Melodies for Canine Companions
Verwunschene Fäden der Zärtlichen Einöde Musik
狗狗狂欢之旅：探索狗窝的奇幻世界
Dogs with Anxiety: Puppy Go to Sleep at Night
Canine Melodies: Music for Dogs' Entertainment
Tender Dog Moments: Piano's Harmonic Bond
Wagging Across the World: A Dog's Tale of Adventure
Fur and Far Horizons: A Canine's Grand Tour
Dogs Among the Stars: A Celestial Resting Place
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc640683066d3a37f7d1aea373c29110f07bb6218f423564f0a8cfe41aa2ba1ed. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/QZWDE2422742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f8e8983fb12edf47930168a461c8499b630d4c392c03f6a1ce1ece465c0d471. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QZWDE2422751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x934c29b463c41a7541fc528db446bad26652c33fef40946f3e08a3408733f760. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QZWDE2422775.
Paws and Peace: Unwind Your Canine Companion
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6166fb98a8e784ccdbbe457d3f438f3a32804b8855d518bdbbeab960ab7c9ba8. 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/PL6B02329772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc477a97b0beba1aa11cb4e38c89dcfeb6612ddc7d7b8963bb75dbf4d7ded4385. 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/PL6B02329773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe12565418bed63867e56c2ca59b5a2f2d234aa9b4ae6672cd9cc562fbd6a27a6. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/PL6B02329774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22ba6beb9614a0433f1c73e14a8cf0e10b9fadaff7888349a5c9184b57672553. 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/PL6B02329775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68f51cc7fd3f27561a4011c39319205693a5693e4e3680db757e4e03afc55eaa. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/PL6B02329776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b3a9f67897eb5ec02959f3264fce820b2f752b399f2ab2d18415c4722748769. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/PL6B02329777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdff8ba21232d30f79f9cc8b588dcf3fc265cfc26ed43254e19a3b5f502710b94. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/PL6B02329778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x473b804ad882cb3979b325c5692ec12d69e6905959011f05d0ca546b1d3063c4. 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/PL6B02329779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65e607b033ec66d28d4850090e89d7316b8594ea1221a3eb7955c32c6958dd1a. 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/PL6B02329780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb79822d14fd0152cf4ecd99a39a781727bf3321748d6f8f3b22f10d2ca6c40a. Chain 2 (Bitcoin): anchored in block 960191 (2026-07-30T01:51:26Z), 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/PL6B02329781.