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 0xb2f0851898dabcafbef81651321684974f27d0948ef85af4f694b6e247a4220c. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d110bb8a-e079-4449-8a48-78b66c40b359.json and https://artists.proofprofile.net/proofs/artist/d110bb8a-e079-4449-8a48-78b66c40b359.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2292722c1ab8f0f7bd2a0275f3e129cde6df29f33a598cc10de4f9d4b1a7949f. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/QZB4J1896918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7a791ec1ab8e76560fba0d606c5b10df0121b64d7da76de7401f051d9845b58. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:10:21Z), 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/QZDA41802548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e595e890211119c029e420d26ad5667870dda80bf0a52ddb55c207cd08b2319. 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/QZDA41845473.
Daniel Tiger's Neighborhood Theme Song (Lullaby)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0c91a6e88e6e44898a40f733af6c16fb0b8c832e6e224ead03c135cde6e7318. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/QZDA41861985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02d4dd9de68a27fe75ab89a96d702387b20b626e3d39e3bdc29113d04f6709d2. 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/QZDA41891753.
Blaze and the Monster Machines (Lullaby)
Blaze and the Monster Machines - Lullaby
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11af745026bc589edbb2d07e5846b54e6026b84f361756d46be0ba5cd917eaf5. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZDA51812734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd10f10fb023ddf1c13999393b757142fb38b997a93eb6143c99318f66560cad1. 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/QZDA51831359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9521cd1d64cc5d097e90385994f95dd4ce33cbd08b392fa91f7b61114d8d79a9. 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/QZDA51856298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0126c22877b126a6e46d078306523c380dbfc4f6b84f6cbc31df343f5932f0ed. 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/QMPKX1857796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc45a1b3cb4d77f4a707ecc47c0d420d45aa70e7fb898b664f9f81d4f1b5e630. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/QMPKX1886448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x879ce1b3172da76f0050a04d4a33e7785df8378561203dc80975a6a58dafa1e3. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZDA72097194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77b4a12a2ad6449cea43fd0b644a22f0bbccf1ba892a200b70b10760f7cb7e8d. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/QZDA72097193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9e00291c606a9d05fbcd80fbe79e5c88d65d2d2ba99034b4b018a39e5435d2f. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZDA72097191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x101612e9fb649441378a47e848ec1dd1c9b52d61ad258f28f8c6a2cdd8cdfc8d. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZES52093855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16eb01ee3c1dff2f12fe7cf8d2886d9043f6a66fad0518658bd3a74c46ff96c0. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZES72021152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45bc8f2cfb5b8806e4dffdbd4fa694c0d8335bbfdc90e3ef0a9851e53e630061. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/QZES72021126.
Mira, Royal Detective Theme Song (Lullaby)
Mira, Royal Detective Theme Song - Lullaby
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20e2cd835431468d097c2889dfbd411c378020dc3290452d7c7ce44658b94f64. 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/QZES72021150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf36bf6320dcef41f7299c8e7c055037a6cc98394b3d24b3c76719324811be7f. 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/QZES92030316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x041413fb6e3c1416adf0c45ded4a9a64d2ab9a86433e3dea284467ea7f3a081d. 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/QZHN42043251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fec719bd6e3c73650075dcc2f1555fe1e4fb6dec30cd0a97a8d6f9e533fe239. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZHN42046740.
Jazz Piano Softness: Calm Lullabies for Baby Sleep
Enchanted Lullaby: Melodic Journey for Baby Sleep
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc85f6b55b780c66976f7bc2425c034e1925d1fed32330a21d45d84ef3a209e04. 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/QZWDD2420940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0a7fb1bd3379fd388045ca95805efb9f720f8ff40824e8ee728a147ceda0885. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZWDD2421006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x052a302efd56daa4d0ad567e5d135adc74bdd3b0b6b23144f1981f354f903a62. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZWDD2421007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4df817ba1eb1a5392f2cc1d32318690564e7759eeefbbea93a17bb5a62f58990. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/QZWDD2421012.
Ryan's Mystery Playdate Theme Song (Lullaby)
Ryan's Mystery Playdate Theme Song - Lullaby
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3e278f6d3e4037ee5605b71a2a2d06501cc23e362d1c088254236dfa9f79242. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZWDD2421033.
Alice's Wonderland Bakery Theme Song (Lullaby)
Alice's Wonderland Bakery Theme Song - Lullaby
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bca3c4b08af1b71db52097e90b416706c8ef2e7aa4584e648befec03cded09e. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:47:40Z), 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/QZWDD2421037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2368fff7e852779582c8760e599391b953f68cf17f5824cd83bc06f052b0e42. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZZEB2450596.
My Little Pony Theme Song (Lullaby Cover)
My Little Pony Theme Song - Lullaby Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cbaed9ca9415c139bf1c02189f8a3c790bd1a64fb5e1461361e8dc5792d03dd. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:44:15Z), 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/QZZEB2456892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb4881ac17a0f243d8355fd8f85930335e53645cf89fa0aed2128ca13f60b785. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T11:19:58Z), 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/QZZEB2499285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e47e4373eb6c98cf4b299229931ddd4ff4425cfc7e97ea11c5a8b62894374b3. 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/QZZEC2405952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65193b9bc4f2808a37e46de4d83926c4dc0b2f853f4d47b5fdf1188fbc3376fd. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:23:14Z), 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/USLZJ2533077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7fe35cff68891c19424e70f873698a91c6a824615390f001e00ccc9733edb4b. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T03:02:18Z), 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/GBRKQ2566641.
Clifford the Big Red Dog Theme Song (Lullaby)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d016f542c1ffb8312f2db1fb9fc6e9bfa3854c5d9c117b31f92f493d4289d0a. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/GBWUL2584719.
Spidey and His Amazing Friends Theme Song (Lullaby)
Spidey and His Amazing Friends Theme Song - Lullaby
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd96734102e71ce148df65a8aafe4c7b63f2477f5daa4a64fd79992d5e92ee1ee. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:41:36Z), 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/GBWUL2587631.
SpongeBob SquarePants Theme Song (Lullaby)
SpongeBob SquarePants Theme Song - Lullaby
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54b375b65c12afda79164c1cac83b6ee2fc6f193c91474315363b5ccd2e07ed7. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:33:17Z), 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/QZTRX2549305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc66cd51f213057a530d255d4bbf1d59032c8cf4c07bdfc7efe3c568177838d95. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZTV32596427.
Abby Hatcher, Fuzzly Catcher Theme Song (Lullaby)
Mickey and the Roadster Racers Theme Song (Lullaby)
Nella the Princess Knight Theme Song (Lullaby)
Nella the Princess Knight Theme Song - Lullaby
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3edce63de4662a2fc8e818a70950831358dd3c157a4b19772044807a0c2603af. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/QZWV32550661.
Mickey Mouse Clubhouse Theme Song (Lullaby)