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 0x7639abbc1c9a53bfebae2acfab348a91febe7377ab088e362df3ae0a30005230. 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/87335e7d-ee80-4533-9ac2-74ca2a6c59e8.json and https://artists.proofprofile.net/proofs/artist/87335e7d-ee80-4533-9ac2-74ca2a6c59e8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Twin Sisters: Learning Colors & Shapes Songs
Twin Sisters: Learning Letters & Number Songs
Twin Sisters: 20 Animal Songs Every Child Should Know
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 0x0c0e143e2073440ad1eac9dd6dbdfad9d9f190dd642b312dac19cd810c6158e4. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USFEY1220309.
Twin Sisters: Baby's First Nature Sounds
Twin Sisters: Lullabies from Around the World - Instrumental Classics
Twin Sisters: Baby's First Classical Favorites
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4915bf5dce46176344d3583be27270f6e3d30c5fdbbd7b892a7b930b1d8fc578. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USFEY1220936.
Twin Sisters: My First Bible Songs - Rise and Shine and Give God the Glory, Glory
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x341e626673c0493cd79d116d6e55a59d5db36fc8f957019a30fea6b90a0f0116. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USFEY1220741.
Hush, Little Baby / All the Pretty Little Horses
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3a43df6063b2c6f39dc1cd1a165bae2b4eb8ff8a6534dbad60536a91e3fe1c3. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USFEY1222118.
Kum Ba Yah / Dance to Your Daddy / Raisins and Almonds
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf62e92df64226b819cc4ceb36bdde3640a9f9f59ca556ec3e676a3c82bcf1ee. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USFEY1222121.
Go to Sleep / Now the Day Is Over / Star Wish
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x010a3a36ec944ab70ea05349ee89efb5a29e83b89ffb5690ae87c05c6cadb549. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USFEY1222124.
Twin Sisters: 20 Sunday School Songs Every Child Should Know
Twin Sisters: I Know That Jesus Loves Me
Twin Sisters: Baby's First Songs of Faith
Twin Sisters: Sing Me to Dreamland - Golden Slumbers Kiss Your Eyes
Twin Sisters: 20 Bible Songs Every Kid Should Know
Twin Sisters: Christmas Sing-Along for Everyone
Twin Sisters: Heavenly Hymns and Bible Songs
Twin Sisters: What Does Easter Mean Anyway?
Twin Sisters: When I Grow up I Want to Be
Twin Sisters: 20 Hymns Every Child Should Know
Twin Sisters: 20 Scripture Songs Every Child Should Know
Twin Sisters: Instrumental Hymns & Carols
Twin Sisters: Baby's First Instrumental Favorites
Twin Sisters: Songs for Silly Time Split Track
Twin Sisters: My First Travel Time Songs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbca197a235e40931c974ebd5668fb39f9fa02ed95036c1897f489edd669d5058. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USFEY1221929.
Twin Sisters: Fun Morning Songs to Start Your Day
Twin Sisters: My First Sunday School Songs
Twin Sisters: Lullaby Blessings - Jesus Loves Me This I Know
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe57b2cf916802e8a2bec588c5c78dd084ea3485549cf59224136b9a170706753. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USFEY1220713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c27002ba97a978f2d5f3e0e3019740a3dc8d96a487157bb081051387e31ac50. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USFEY1220714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe08957798c1f553a2f33449b48ced6c9e922226108bcf799af019acf059644b4. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/USFEY1220724.
Twin Sisters: Baby's First Quiet Time Songs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb45954c77d5bb99a69da45677a98c97e1c42ddc1f02348255b1053cd7053589. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USFEY1220608.
Twin Sisters: 123s & Abcs - A Is for Alligator and More!
Twin Sisters: Action Songs - Head, Shoulders, Knees, And Toes and More
Twin Sisters: Toddler Dance & Play, Vol. 3
Twin Sisters: Toddler Dance & Play, Vol. 2
Twin Sisters: Toddler Dance & Play, Vol. 1
Twin Sisters: Kids' Traveling Songs, Vol. 4
Twin Sisters: My First Playlist - Bathtime
Twin Sisters: My First Playlist: Farm Animals
Twin Sisters: My First Playlist - Silly Songs
Twin Sisters: 25 Favorite Christmas Songs for Your Family
Twin Sisters: My First Playlist - Bedtime
Twin Sisters: My First Playlist - Dressing
Twin Sisters: The Christmas Story, Vol. 2
Twin Sisters: Ultimate Kids Collection, Vol. 2
Twin Sisters: My First Playlist - Colors & Shapes
Twin Sisters: Nursery Rhymes - Humpty Dumpty Sat on a Wall and More
Twin Sisters: My First Playlist - Wild Animals?
Twin Sisters: Mother Goose Nursery Rhymes
Twin Sisters: Santa Songs & More, Vol. 1
Twin Sisters: Nursery Rhymes Sing-Along, Vol. 3
Twin Sisters: Nursery Rhymes Sing-Along, Vol. 2
Twin Sisters: Christmas Memories, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95265009e5969d30fb028825fb18fb1906eba7c1d94f6907319eff26f60af0ca. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/USFEY1220072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e53b08f514b22d9dc7b7c7c5300d0ccc662cbf53bad5c31fe68b31500af5ecd. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:23:28Z), 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/USFEY1220082.
Twin Sisters: My First Playlist - Numbers
Twin Sisters: Ultimate Kids Collection, Vol. 1
Twin Sisters: Santa Songs & More, Vol. 2
Twin Sisters: Nursery Rhymes Sing-Along, Vol. 1
Twin Sisters: My First Playlist - On the Go
Twin Sisters: Sing and Learn Bilingual Songs for Kids in Spanish
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cd884ffc2c0ccfbfcc9deca132760f0d1c5b6c6d77f1b91029f428c5efe3a7d. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/USFEY1220050.
Twin Sisters: My First Playlist - Big Rigs
Twin Sisters: The Twelve Days of Christmas
Twin Sisters: Toddler Sing & Learn, Vol. 2
Twin Sisters: Caroling Songs Every Child Should Know
Twin Sisters: Sing Happy Birthday to Jesus
Twin Sisters: My First Playlist - Alphabet
Twin Sisters: Full-Length Children's Songs, Vol. 2
Twin Sisters: Full-Length Children's Songs, Vol. 3
Twin Sisters: Full-Length Children's Songs, Vol. 1
Twin Sisters: My First Mother Goose Songs
Twin Sisters: Glory to God in the Highest
Twin Sisters: Christmas Is for Quiet Moments
Twin Sisters - Family Traditions, Vol. 3
Twin Sisters: My First Kindergarten Songs
Twin Sisters: My Favorite Night-Night Songs
Twin Sisters: Lullabies for Your Baby Girl
Twin Sisters: Songs to Celebrate Christmas
Twin Sisters: Lullabies for Sweet Slumber
Twin Sisters: My First Old Testament Songs
Twin Sisters: My First New Testament Songs
Twin Sisters: Lullabies for Your Baby Boy
Twin Sisters: His Banner over Me Is Love
Christmas Reflections (Gentle Instrumental Carols & Songs)
Christmas Memories, Vol. 1 (Instrumental Holiday Music)
More Bedtime Songs (Twinkle, Twinkle little star, how I wonder what you are)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf31737ded8d76c1138cb30fdf85e9d47030d5f5efe3d0e01c2e6fa6ef23eaeb. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:22:53Z), 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/FR6V81530060.
Holiday Entertaining (Instrumental Music)
Duerme, Mi Pequeñito / Sleep, My Little One
Growing in God's Word (Memorizing God's Word Through Song)
Christmas Through the Eyes of a Child (An instrumental Journey)
Love - No Conditions (feat. Split-Track)
Feels Like Christmas (Instrumental Holiday Music)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a29177fa9b0099fcbd176ec9b368f7acefbd1efc607b379029d6d4ab3b23712. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/FR6V81541920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42391c658e4d525089cce25028244434d1df56677e8018baf7a8b4ea6c7524f5. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T15:49:49Z), 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/FR6V81541923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda50d09038b110ad5070563468cb1c08eb9cf68eaeba526c3681e0ee9065d669. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/FR6V81541840.
Five Little Monkeys Jumping On the Bed - Chant
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa505b57407e60886eefc75a07ce4d07137033f9cda35b58e62e224d39270a1fe. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/FR6V81541985.
Subtraction (Great for Multivel Learners)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1614913b1b3efb23ad2806e6b449301bedeafc53c844b2cc4f1dd35c48e16c2c. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:52:47Z), 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/FR6V81541986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5998513125fc01e7d40197c7d84b16e2c6818669f2d3908bebb1536dc1f8417c. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FR6V81541990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc969ea4b0cf5667a7df638e9facfe7f84ebec805e3292eecbe22324368ed5c38. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FR6V81541991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23a291ed0124af25c7ea74f369272ae2939b47bdf1a4a1dfb9eb6949810f800b. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FR6V81541992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x276567611748a5c924aaa9ff255341949a80bd58c60ff7f5215941f98196d5fc. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FR6V81541996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x079dc7e96dde159cb87632eada09709a7e84758b9b56b1abfe50239f3d4d9856. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FR6V81541997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f9f45df98c256ccf4f1af7198b0913ef61ce79f5ffa73acec5d38e099b5fd46. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T01:08:10Z), 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/FR6V81543027.
Nature Serenades, Vol. 1 (Music and Nature, a Daily Retreat)
Nature Serenades, Vol. 2 (Music and nature, a daily Retreat)
Nature Serenades, Vol. 3 (Music and Nature, a Daily Retreat)
Grade School Musical (Featuring Beyond the No-Charachter Zone)
Preschool Musical (feat. Glodilocks, the Three Bears)
America the Beautiful (Time-honored Patriotic Favorites)
Give Thanks to the Lord (Faith-Building Songs for Families)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4246118cc53bbf81b7fcf030aa5c1052c9d47246187dd504d59ff6a3bc3f012. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:15:06Z), 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/FRS182165606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6baa2a91bf923dabeeb27fe2619ed159051b338ac0eafededb8613025a314ffb. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/FRS182165608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa203f6d2931e395fb826dfa98a89122d298865881087784c448dd0a14ac2b340. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FRS182165610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ed55ba0422a070a32a6baf690dde897f4ebc79515fb546780394218524cf0f. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FRS182165634.