1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x010f2133102d2490faf3742a08b23fafb021d3b9d89056119f4259873cfbf17a. 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/a795b1e4-b35e-423e-bce7-f330029c04e6.json and https://artists.proofprofile.net/proofs/artist/a795b1e4-b35e-423e-bce7-f330029c04e6.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 → block OTSBitcoinBlock must exist at that height 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 0xb43c8fe5b085c1b80bc05791edd2f3ee9c621f7a7f750d88dfc1d3108a2d7bd4. 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/QZYD92401292.
The Girl Who Fell from the Sky (From “Laputa: Castle in the Sky) - Piano Version
One Summer’s Day (From “Spirited Away”) - Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f0acc6026cacdf188407b8ba4e9df47365470f9f1f039c95a54879e0632f46b. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:17:17Z), 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/QZYD92402283.
The Path of the Wind (From “My Neighbor Totoro”) - Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb8efd7b3780b091a923f424ee8651acaf9d72437a03924bf1fc89d6a368d3d7. 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/QZYD92402287.
The Legend of Ashitaka (From “Princess Mononoke”) - Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fba49d878b9484bcf2df30ebfa7a3bc97fdf074d455d434c044e2d448ffd3e7. 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/QZYD92402280.
A Town With an Ocean View (From “Kiki’s Delivery Service”) - Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbfd17c749303b4b58d2739ed55f7f80d78f56c6b0b0b68f5dee0a3b8810ba45. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZYD92402285.
Merry-Go-Round of Life (From “Howl’s Moving Castle”) - Piano Version
If I Could Be the Sea - Ending Theme Song (From “The Ocean Waves”) - Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cb8bc48a2aa1722afae1f618c2c3bf0f61d72f161a483e695b183c3603087d2. 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/QZYD92402281.
The Bygone Days (From “Porco Rosso”) - Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e1e4fd74d838537091304baf26296aac0c049d6449afe799f5df5c6f755d0b5. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZYD92402282.
Always With Me (From “Spirited Away”) - Piano Version
My Neighbor Totoro - Ending Theme Song (From “My Neighbor Totoro”) - Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x050e739527ea555cfd30720f47aa92e1bef637e5b932058fa3eb1834546b0d0d. 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/QZYD92402608.
The Flower Garden (Howl’s Moving Castle)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d31aceaa3e22d7ad7e2b51f5ba2947178be25e90e7f326b00955023eeaf33dc. 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/QZYD92402601.
The Promise of the World (Howl’s Moving Castle)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x297cf883fe57107a74e4fb83dd6d1877044e638b6a6de773206c48a4ba97ce90. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZYD92402600.
Take Me Home, Country Roads (Whisper of the Heart)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe69cebdde34bb992125253889551d97009cbbf11a7d1dff828a4d800ea2c9544. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZYD92402606.
Fine On The Outside (When Marnie Was There)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29343fc1d3e26ec68b8e4e28be098a67bdfd6923241415be48dbc3cb0a80189f. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:28:55Z), 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/QZYD92402605.
The Journey to the West (Princess Mononoke)
Isabella’s Lullaby (The Promise Neverland)
Mononoke Hime (From "Princess Mononoke")
Ashitaka and San (From "Princess Mononoke")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05cdf48f6626575b1c34879aa71d948c8aed25748d695d92762d696f39eb4313. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/QZYD92402786.
Arrietty's Song (From "The Secret World of Arrietty")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x909272ca8589eb657e1902b4fbebee27a4240c4de502c12e660a4a90198ebd6f. 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/QZYD92402780.
Therru's Song (From "Tales from Earthsea")
Ponyo on the Cliff by the Sea (From "Ponyo")
Summer of Farewells (From "From up on Poppy Hill")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed4c0862e6428b2ab7c3f74333bc8207ce7bb2c13f610a60ced2e3d3a12e6a5e. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZYD92402783.
On a Clear Sky (From "Kiki's Delivery Service")
Nausicaä Requiem (From "Nausicaä of the Valley of the Wind")
Home Sweet Home (From "Grave of the Fireflies")
The Name of Life (From"Spirited Away") - Rain Version
Merry-Go-Round of Life (From “Howl’s Moving Castle”) - Rain Version
Always With Me (From “Spirited Away”) - Rain Version
The Path of the Wind (From “My Neighbor Totoro”) - Rain Version
A Town With an Ocean View (From “Kiki’s Delivery Service”) - Rain Version
The Girl Who Fell from the Sky (From “Laputa: Castle in the Sky) - Rain Version
Arrietty's Song (From "The Secret World of Arrietty") - Rain Version
Ashitaka and San (From "Princess Mononoke") - Rain Version
Take Me Home, Country Roads (From "Whisper of the Heart") - Rain Version
Mononoke Hime (From "Princess Mononoke") - Rain Version
Reprise (From "Spirited Away") - Rain Version
Ponyo on the Cliff by the Sea (From "Ponyo") - Rain Version
Fine On The Outside (From "When Marnie Was There") - Rain Version
On a Clear Sky (From "Kiki's Delivery Service") - Rain Version
If I Could Be the Sea (From “The Ocean Waves”) - Rain Version
Home Sweet Home (From "Grave of the Fireflies") - Rain Version
The Legend of Ashitaka (From “Princess Mononoke”) - Rain Version
The Bygone Days (From “Porco Rosso”) - Rain Version
The Promise of the World (From "Howl’s Moving Castle") - Rain Version
The Flower Garden (From "Howl’s Moving Castle") - Rain Version
Departure (From "Kiki’s Delivery Service") - Rain Version
Therru's Song (From "Tales from Earthsea") - Rain Version
My Neighbor Totoro (From “My Neighbor Totoro”) - Rain Version
One Summer’s Day (From “Spirited Away”) - Rain Version
The Journey to the West (From "Princess Mononoke") - Rain Version
Nausicaä Requiem (From "Nausicaä of the Valley of the Wind") - Rain Version
The Sixth Station (From "Spirited Away") - Rain Version
Summer of Farewells (From "From up on Poppy Hill") - Rain Version
You’re in Love (From "Howl’s Moving Castle") - Rain Version
Isabella’s Lullaby (From "The Promise Neverland") - Rain Version
Shinzou wo Sasageyo ! (From "Attack on Titan") - Piano Version
Call Your Name (From "Attack on Titan") - Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7aa8adc527d773469d312f7bffc15f90b87088924692a72e169517ce8b097c5. 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/QZYD92403611.
Red Swan (From "Attack on Titan") - Piano Version
Call of Silence (From "Attack on Titan") - Piano Version
Vogel im Käfig (From "Attack on Titan") - Piano Version
Counter Attack-Mankind (From "Attack on Titan") - Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b8696ecc53d1ee64ba9e80d260ee3d030e31654e2108a8d8bc5a2f1f25937b. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZYD92403615.
Akuma no Ko (From "Attack on Titan") - Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5630603693a7428fa48ae9354b764b3a9bbfedeb9b7e71785b246ef5e8a8ef2. 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/QZYD92403616.
Attack on Titan Main Theme (From "Attack on Titan") - Piano Version
Apple Seed (From "Attack on Titan") - Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab366c017c00a59172893dee3b2af7b9fabf21d053e1443a568b5276602d9a30. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QZYD92403618.
T-KT (From "Attack on Titan") - Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x342e710f84347a54b7efc1f5725e100d1574315be344299ba4b00afdb2cde911. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/QZYD92403619.
Zero Eclipse (From "Attack on Titan") - Piano Version
The Reluctant Heroes (From "Attack on Titan") - Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b0093f2255df3373ab8b81de52a2f287de5613fe085e93e2ae05a6d8c56794a. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T23:55:40Z), 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/QZYD92405259.
Bauklötze (From "Attack on Titan") - Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc6ba7a00fc8436671fab81ee4551f3270b1e5945e3fe2288be00bc73d13dde7. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:41:01Z), 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/QZYD92405265.
Levi's Pain (From "Attack on Titan") - Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c3d7d8c16b7da457e549b97572b95ba934f9e661ba23093f72a2b1bf9bd7c5b. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZYD92405262.
The Rumbling (From "Attack on Titan") - Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x604b261fbf15b28ccd3d2e44e9d51fd8f38a425d95253bd2ebb1dcf2fd502992. 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/QZYD92405266.
Before Lights Out (From "Attack on Titan") - Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cd2a69b964bef6839ba3ddfffdc992db076ff96d0af1fdd3f0218f0f59f749c. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/QZYD92405264.
Name of Love (From "Attack on Titan") - Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5903de201424d9dde2868cb42c9c224e24254389bb5a4975882cb54602d326fd. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:41:03Z), 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/QZYD92405258.
My War (From "Attack on Titan") - Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88491adaaf5dbb024575bfa828b6b9dc4ffc3bae169e94e90701fbf03a0b164e. 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/QZYD92405267.
Shock (From "Attack on Titan") - Piano Version
Guren no Yumiya (From "Attack on Titan") - Piano Version
Levi's Pain (From "Attack on Titan") - Rain Version
Call of Silence (From "Attack on Titan") - Rain Version
Akuma no Ko (From "Attack on Titan") - Rain Version
Vogel im Käfig (From "Attack on Titan") - Rain Version
Apple Seed (From "Attack on Titan") - Rain Version
The Reluctant Heroes (From "Attack on Titan") - Rain Version
Name of Love (From "Attack on Titan") - Rain Version
Call Your Name (From "Attack on Titan") - Rain Version
Bauklötze (From "Attack on Titan") - Rain Version
Shock (From "Attack on Titan") - Rain Version
Red Swan (From "Attack on Titan") - Rain Version
Guren no Yumiya (From "Attack on Titan") - Rain Version
My War (From "Attack on Titan") - Rain Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcb186b180330bb00cbcb2ea53c21d18d7abb4537c4b185eace036c13da9a1dc. 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/QZYD92405276.
T-KT (From "Attack on Titan") - Rain Version
Attack on Titan Main Theme (From "Attack on Titan") - Rain Version
Shinzo wo Sasageyo ! (From "Attack on Titan") - Rain Version
Before Lights Out (From "Attack on Titan") - Rain Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94808a054f92b02824f04855872ae5a5f780296423c4808f8a7481ea4144992b. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/QZYD92405275.
The Rumbling (From "Attack on Titan") - Rain Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b662c883d416f8af6413781e19e6de67def66bb307e1d32a70307a32b49edcf. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/QZYD92405294.
Zero Eclipse (From "Attack on Titan") - Rain Version
Counter Attack-Mankind (From “Attack on Titan”) - Rain Version