right|thumb|A melanistic Indian leopard in Nagarhole National Park, Karnataka A black panther is the melanistic colour variant of the leopard (Panthera pardus) and the jaguar (Panthera onca). Black p
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 0xc73740787374087c43cab276ab47b7c8691e0a5774470fbd6c16de132f63b426. 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/c2313400-1a90-4860-9b2f-bfbd4ab90651.json and https://artists.proofprofile.net/proofs/artist/c2313400-1a90-4860-9b2f-bfbd4ab90651.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Black Panther (Hörspiel zum Marvel Film)
Black Panther: Wakanda Forever (Hörspiel zum Marvel Film)
Kapitel 01: Black Panther - Wakanda Forever
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 0x35349d4e54484cf70260498682098800e5226a9b65cefd2e1b5187514a836db8. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD12328356 — a six-check JSON result.
Kapitel 02: Black Panther - Wakanda Forever
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6140a4981df6a5f932bab71360f4fc24aa942698f9c8e1e06db64639992bfde0. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD12328357 — a six-check JSON result.
Kapitel 03: Black Panther - Wakanda Forever
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x663b3a99c473deceae7f6f78ee21fdfcf42f0d9ee8aa412ff4e665733258bec5. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD12328358 — a six-check JSON result.
Kapitel 04: Black Panther - Wakanda Forever
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d83a3ff217e9a6001a12c3464dd4707dbd7b0aff0b6dacb741949b4d10d75ae. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD12328359 — a six-check JSON result.
Kapitel 05: Black Panther - Wakanda Forever
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x112c9204e53a354c46694c865ace5d0bf7a863ca969ce120cc7d8faf1897a437. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD12328360 — a six-check JSON result.
Kapitel 06: Black Panther - Wakanda Forever
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b1515603eb41d22b8bb647c9d374d3a87b15c4ed298b76fb6343117c35ea478. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD12328361 — a six-check JSON result.
Kapitel 07: Black Panther - Wakanda Forever
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7abc46e3d54e47b74ae4caf52da74a270af01692e4cc22b90e0e59d7a1445e52. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD12328362 — a six-check JSON result.
Kapitel 08: Black Panther - Wakanda Forever
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22ac3a7fdd31fcb814cdd3a28b4ed9bc5e3c52d28279b2f28683f1ddec1452f0. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD12328363 — a six-check JSON result.
Kapitel 09: Black Panther - Wakanda Forever
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1d614430d6a1468cbc5f8579a8a8a2645b2054f0d5b59f973c52dd7ce365715. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T07:27:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD12328364 — a six-check JSON result.
Kapitel 10: Black Panther - Wakanda Forever
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7eff3ff5134c4f2f8dd8bbf5caf1f17e3cbf5c2b8204098e1b89137b5c818de. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T05:02:52Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD12328365 — a six-check JSON result.
Kapitel 11: Black Panther - Wakanda Forever
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82b1dbca4c72c174f49fe52cca69a6d07b68960d45c9050e1ee6e66d3c3147d2. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD12328366 — a six-check JSON result.
Kapitel 12: Black Panther - Wakanda Forever
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x521ddd1e865d7434594149dedf45c8b9bc3f7d39c16260d881434304f54134ac. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD12328367 — a six-check JSON result.
Kapitel 13: Black Panther - Wakanda Forever
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3c112f7a4f84a97e558143f58080402f2db07fc1861c8274f63b898cc6687fe. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD12328368 — a six-check JSON result.
Kapitel 14: Black Panther - Wakanda Forever
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcea2d65c3d1a3399d52eb5a630ad50d510080ea8ecdf5fa3cae211b9174e3d2. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD12328369 — a six-check JSON result.
Kapitel 15: Black Panther - Wakanda Forever
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0461f0f709af9bb351dfb777967b4f6377e7a9083e9bbb03381f243369a8654. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD12328370 — a six-check JSON result.
Kapitel 16: Black Panther - Wakanda Forever
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cce7d5bcc193d42c3a448994f58fc4baf32c70616f99467520e3f96ffbef4b3. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD12328371 — a six-check JSON result.
Kapitel 17: Black Panther - Wakanda Forever
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf302a25f96fa6d089594be5c6bc5bb957eca04e13fe069f042dc754c0af05987. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD12328372 — a six-check JSON result.
Kapitel 18: Black Panther - Wakanda Forever
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0be71ba12ecc78af0871cce9b54b2329c317f1b1f5a83ad17152b55938f0abc5. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD12328373 — a six-check JSON result.
Kapitel 19: Black Panther - Wakanda Forever
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc49dd43dd86a1f80b337c5e6ec878c4ccdefaf84cdbcdcab65abbe8bcbc136bb. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD12328374 — a six-check JSON result.
Kapitel 20: Black Panther - Wakanda Forever
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39cbe4ca9fb3988e0df89556aed0f76df6ce1f30f9439350f73450262b944c50. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD12328375 — a six-check JSON result.
Kapitel 21: Black Panther - Wakanda Forever
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4e25f7bcfb6b4b669f3173336bf85d35e26991ea8cda23f661cf16bda7dcc0b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD12328376 — a six-check JSON result.
Kapitel 22: Black Panther - Wakanda Forever
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71e090ff354f0aedffd62087f58bbc689327e6472e998d81bed695fa1b5526f5. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD12328377 — a six-check JSON result.
Kapitel 23: Black Panther - Wakanda Forever
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38929e8e10b7465b76a2ce69b3d9432b8101a1bf9b51f6038384a42025085ad2. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD12328378 — a six-check JSON result.